improve WiFi support for the sun50iw1 board family

- compile the 8723cs kernel module for Sunxi64 current and edge kernel
- run-tested on the Pine64
- source of the *.bin firmware blobs is the kernel git repository
  https://git.kernel.org/pub/scm/linux/kernel/git/ath/linux-firmware.git/tree/rtw88
  hashes verified by Rolf Leggewie <[email protected]>

Author: Qvy-png

config/kernel/linux-sunxi64-current.config

@@ -903,6 +903,7 @@ CONFIG_RTW88_8822BU=m
 CONFIG_RTW88_8822CS=m
 CONFIG_RTW88_8822CU=m
 CONFIG_RTW88_8723DS=m
+CONFIG_RTW88_8723CS=m
 CONFIG_RTW88_8723DU=m
 CONFIG_RTW88_8821CS=m
 CONFIG_RTW88_8821CU=m

config/kernel/linux-sunxi64-edge.config

@@ -883,6 +883,7 @@ CONFIG_RTW88_8822BU=m
 CONFIG_RTW88_8822CS=m
 CONFIG_RTW88_8822CU=m
 CONFIG_RTW88_8723DS=m
+CONFIG_RTW88_8723CS=m
 CONFIG_RTW88_8723DU=m
 CONFIG_RTW88_8821CS=m
 CONFIG_RTW88_8821CU=m

config/sources/families/sun50iw1.conf

@@ -16,9 +16,11 @@ GOVERNOR=performance
 ASOUND_STATE='asound.state.pinebook-next'
 
 family_tweaks_s() {
-	# add bluetooth firmware for 8723cs + sysrq fix
+	# add bluetooth firmware for 8723cs (rtw88) + sysrq fix
 	if [[ $BOARD == pinebook-a64 ]]; then
-		cp -R $SRC/packages/blobs/rtl8723bt_fw/* $SDCARD/lib/firmware/rtl_bt/
+		mkdir -p $SDCARD/lib/firmware/updates/{rtl_bt, rtw88}
+		cp -R $SRC/packages/blobs/rtl8723bt_fw/* $SDCARD/lib/firmware/updates/rtl_bt/
+		cp -R $SRC/packages/blobs/rtw8703b_fw/* $SDCARD/lib/firmware/updates/rtw88/
 		touch $SDCARD/etc/sysctl.d/sysrq.conf
 		echo "kernel.sysrq = 0" >> $SDCARD/etc/sysctl.d/sysrq.conf
 	fi