SpacemiT: Fixup linux-6.18.y overlay support

Signed-off-by: Patrick Yavitz <pyavitz@gmail.com>

patch/kernel/archive/spacemit-6.18/006-general-spacemit-overlays.patch

@@ -1,3 +1,30 @@
+From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
+From: Zhang Ning <832666+zhangn1985@users.noreply.github.com>
+Date: Sat, 30 Aug 2025 10:33:14 +0800
+Subject: general: spacemit overlays
+
+Signed-off-by: retro98boy <retro98boy@qq.com>
+---
+ scripts/Makefile.build | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/scripts/Makefile.build b/scripts/Makefile.build
+index 111111111111..222222222222 100644
+--- a/scripts/Makefile.build
++++ b/scripts/Makefile.build
+@@ -107,6 +107,9 @@ always-y += $(hostprogs-always-y) $(hostprogs-always-m)
+ userprogs += $(userprogs-always-y) $(userprogs-always-m)
+ always-y += $(userprogs-always-y) $(userprogs-always-m)
+ 
++# Overlay targets
++extra-y += $(dtbo-y) $(scr-y) $(dtbotxt-y)
++
+ # Add subdir path
+ 
+ ifneq ($(obj),.)
+-- 
+Armbian
+
 From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
 From: Paolo Sabatino <paolo.sabatino@gmail.com>
 Date: Wed, 2 Oct 2024 19:30:34 +0300

patch/kernel/archive/spacemit-6.18/007-device-tree-overlay-support.patch

@@ -0,0 +1,56 @@
+From cd37bf87dbb1632b1c40c88032b68a43722b6ea0 Mon Sep 17 00:00:00 2001
+From: Patrick Yavitz <pyavitz@gmail.com>
+Date: Sat, 18 Oct 2025 14:55:38 -0400
+Subject: [PATCH] device tree overlay support
+
+Signed-off-by: Patrick Yavitz <pyavitz@gmail.com>
+---
+ scripts/Makefile.dtbs | 18 ++++++++++++++++++
+ 1 file changed, 18 insertions(+)
+
+diff --git a/scripts/Makefile.dtbs b/scripts/Makefile.dtbs
+index 2d321b813600..3d28c8ce09e2 100644
+--- a/scripts/Makefile.dtbs
++++ b/scripts/Makefile.dtbs
+@@ -96,6 +96,7 @@ ifeq ($(findstring 1,$(KBUILD_EXTRA_WARN)),)
+ DTC_FLAGS += -Wno-unit_address_vs_reg \
+              -Wno-avoid_unnecessary_addr_size \
+              -Wno-alias_paths \
++             -Wno-gpios_property \
+              -Wno-graph_child_address \
+              -Wno-interrupt_map \
+              -Wno-simple_bus_reg
+@@ -103,6 +104,11 @@ else
+ DTC_FLAGS += -Wunique_unit_address_if_enabled
+ endif
+ 
++ifeq ($(CONFIG_OF_OVERLAY),y)
++# enable creation of __symbols__ node
++DTC_FLAGS += -@
++endif
++
+ ifneq ($(findstring 2,$(KBUILD_EXTRA_WARN)),)
+ DTC_FLAGS += -Wnode_name_chars_strict \
+              -Wproperty_name_chars_strict \
+@@ -120,6 +126,18 @@ dtc_cpp_flags = -Wp,-MMD,$(depfile).pre.tmp -nostdinc -I $(DTC_INCLUDE) -undef -
+ 
+ dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp)
+ 
++quiet_cmd_dtco = DTCO    $@
++cmd_dtco = mkdir -p $(dir ${dtc-tmp}) ; \
++	$(CPP) $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
++	$(DTC) -@ -H epapr -O dtb -o $@ -b 0 \
++		-i $(dir $<) $(DTC_FLAGS) \
++		-Wno-interrupts_property \
++		-d $(depfile).dtc.tmp $(dtc-tmp) ; \
++	cat $(depfile).pre.tmp $(depfile).dtc.tmp > $(depfile)
++
++$(obj)/%.dtbo: $(obj)/%.dts FORCE
++	$(call if_changed_dep,dtco)
++
+ quiet_cmd_dtc = DTC $(quiet_dtb_check_tag) $@
+       cmd_dtc = \
+ 	$(HOSTCC) -E $(dtc_cpp_flags) -x assembler-with-cpp -o $(dtc-tmp) $< ; \
+-- 
+2.43.0
+

patch/kernel/archive/spacemit-6.18/007-general-spacemit-overlays.patch

@@ -1,27 +0,0 @@
-From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
-From: Zhang Ning <832666+zhangn1985@users.noreply.github.com>
-Date: Sat, 30 Aug 2025 10:33:14 +0800
-Subject: general: spacemit overlays
-
-Signed-off-by: retro98boy <retro98boy@qq.com>
----
- scripts/Makefile.build | 3 +++
- 1 file changed, 3 insertions(+)
-
-diff --git a/scripts/Makefile.build b/scripts/Makefile.build
-index 111111111111..222222222222 100644
---- a/scripts/Makefile.build
-+++ b/scripts/Makefile.build
-@@ -107,6 +107,9 @@ always-y += $(hostprogs-always-y) $(hostprogs-always-m)
- userprogs += $(userprogs-always-y) $(userprogs-always-m)
- always-y += $(userprogs-always-y) $(userprogs-always-m)
- 
-+# Overlay targets
-+extra-y += $(dtbo-y) $(scr-y) $(dtbotxt-y)
-+
- # Add subdir path
- 
- ifneq ($(obj),.)
--- 
-Armbian
-