Driver for Ethernet/PCI as found with Xunlong/Ky on the
OrangePi RV2/R2S source tree. Added as kernel patch since
the current spacemit family has conflicting changes with
rtl8852bs when enabling EXTRAWIFI=yes
Note: on the Xunlong/Ky tree, there is also a realtek_pgtool/
subdir that compiles a pgdrv.ko. B/c this does not have a
license indication, is only needed e.g. for MAC address
programming of efuse / eeprom, and generally does not look
required this is ommited here. For details, you may refer
to https://github.com/redchenjs/rtnicpg
Signed-off-by: Sven-Ola Tuecke <sven-ola@gmx.de>