- Created patch/misc/rtw88/6.18/ directory with upstream driver patches
- Removed obsolete kernel 6.16 reference from patch conditions
- Updated comment to clarify that RF path detection fix is only needed
for kernel 6.1.x (upstreamed in 6.18+)
This fixes RTL8822CS WiFi initialization failures on kernel 6.18 where
the driver was not being properly patched due to missing version directory.
Fixes SDIO timeout errors during chip initialization.
