sunxi: add and set 6.6 testing kernel

Allow selecting 6.6 as testing kernel on sunxi.

Runtime-tested:
 - Linksprite pcDuino (cortexa8)
 - Olimex A20 Micro (cortexa7)
 - Pine64 SoM (cortexa53)

Signed-off-by: Zoltan HERPAI <[email protected]>

Author: wigyori

target/linux/sunxi/Makefile

@@ -11,6 +11,7 @@ FEATURES:=usb ext4 display rootfs-part rtc squashfs
 SUBTARGETS:=cortexa8 cortexa7 cortexa53 arm926ejs
 
 KERNEL_PATCHVER:=6.1
+KERNEL_TESTING_PATCHVER:=6.6
 
 KERNELNAME:=zImage dtbs
 

target/linux/sunxi/base-files/etc/board.d/02_network

@@ -17,7 +17,7 @@ sunxi_setup_interfaces()
 	lamobo,lamobo-r1)
 		ucidef_set_interfaces_lan_wan "lan1 lan2 lan3 lan4" wan
 		;;
-	olimex,a20-olinuxino-micro)
+	olimex,a13-olinuxino-micro)
 		ucidef_set_interface_lan "wlan0"
 		;;
 	xunlong,orangepi-r1)