[openwrt/openwrt] omap: enable 5.15 as testing kernel

[LEDE Commits]

chunkeey pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/ed4d743a2cb5d365bb94f1ce6f1a7f1a9a4460f5

commit ed4d743a2cb5d365bb94f1ce6f1a7f1a9a4460f5
Author: Alexey Smirnov <s.alexey at gmail.com>
AuthorDate: Mon Apr 4 11:59:25 2022 +0300

    omap: enable 5.15 as testing kernel
    
    Compiled for and run-tested on BBB
    
    Signed-off-by: Alexey Smirnov <s.alexey at gmail.com>
---
 target/linux/omap/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/omap/Makefile b/target/linux/omap/Makefile
index c7a904bbe5..51f19862d6 100644
--- a/target/linux/omap/Makefile
+++ b/target/linux/omap/Makefile
@@ -12,6 +12,7 @@ CPU_TYPE:=cortex-a8
 CPU_SUBTYPE:=vfpv3
 
 KERNEL_PATCHVER:=5.10
+KERNEL_TESTING_PATCHVER:=5.15
 
 KERNELNAME:=zImage dtbs