armvirt: switch to Kernel 5.10

Armvirt is a development and testing platform and should therefore use
the latest OpenWrt Kernel by default.

Tested via qemu.

Acked-by: Rosen Penev <[email protected]>
Acked-by: Yousong Zhou <[email protected]>

Signed-off-by: Paul Spooren <[email protected]>

target/linux/armvirt/Makefile

@@ -9,8 +9,7 @@ BOARDNAME:=QEMU ARM Virtual Machine
 FEATURES:=fpu pci rtc usb
 FEATURES+=cpiogz ext4 ramdisk squashfs targz
 
-KERNEL_PATCHVER:=5.4
-KERNEL_TESTING_PATCHVER:=5.10
+KERNEL_PATCHVER:=5.10
 
 include $(INCLUDE_DIR)/target.mk