ath25: switch to 5.10 Kernel

Tested-by: Chuanhong Guo <gch981213@gmail.com>
Signed-off-by: Paul Spooren <mail@aparcar.org>

target/linux/ath25/Makefile

@@ -9,7 +9,7 @@ BOARD:=ath25
 BOARDNAME:=Atheros AR231x/AR5312
 FEATURES:=squashfs low_mem small_flash
 
-KERNEL_PATCHVER:=5.4
+KERNEL_PATCHVER:=5.10
 KERNEL_TESTING_PATCHVER:=5.10
 
 define Target/Description