airoha: default to kernel 6.1

6.1 has been present as testing for a while now, so default to it.

Signed-off-by: Robert Marko <[email protected]>

target/linux/airoha/Makefile

@@ -6,8 +6,7 @@ BOARDNAME:=Airoha ARM
 CPU_TYPE:=cortex-a7
 FEATURES:=dt squashfs nand ramdisk gpio source-only
 
-KERNEL_PATCHVER:=5.15
-KERNEL_TESTING_PATCHVER:=6.1
+KERNEL_PATCHVER:=6.1
 
 include $(INCLUDE_DIR)/target.mk