[openwrt/openwrt] mpc85xx: switch default kernel to 5.15

[LEDE Commits]

aparcar pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/9837f81baedaeda6a334d5ffead7bc1c731ae2df

commit 9837f81baedaeda6a334d5ffead7bc1c731ae2df
Author: Nick Hainke <vincent at systemli.org>
AuthorDate: Wed Feb 1 11:42:57 2023 +0100

    mpc85xx: switch default kernel to 5.15
    
    The default kernel should be switched to 5.15 in order to enable testing
    by a broader audience.
    
    Tested on TP-Link TL-WDR4900 v1.
    
    Acked-by: Josef Schlehofer <pepe.schlehofer at gmail.com>
    Signed-off-by: Nick Hainke <vincent at systemli.org>
---
 target/linux/mpc85xx/Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/target/linux/mpc85xx/Makefile b/target/linux/mpc85xx/Makefile
index 31d0d45f4f..7e84be8624 100644
--- a/target/linux/mpc85xx/Makefile
+++ b/target/linux/mpc85xx/Makefile
@@ -11,8 +11,7 @@ CPU_TYPE:=8548
 FEATURES:=squashfs ramdisk nand
 SUBTARGETS:=p1010 p1020 p2020
 
-KERNEL_PATCHVER:=5.10
-KERNEL_TESTING_PATCHVER:=5.15
+KERNEL_PATCHVER:=5.15
 
 KERNELNAME:=zImage