[openwrt/openwrt] rockchip: add kernel 6.6 as testing kernel

[LEDE Commits]

nick pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/ce4da3cf41c3a41037d8ff9dc3d14b9078a63d58

commit ce4da3cf41c3a41037d8ff9dc3d14b9078a63d58
Author: Antonio Flores <antflores627 at gmail.com>
AuthorDate: Fri Apr 19 13:44:18 2024 -0400

    rockchip: add kernel 6.6 as testing kernel
    
    Add kernel 6.6 as testing kernel
    
    Signed-off-by: Antonio Flores <antflores627 at gmail.com>
---
 target/linux/rockchip/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/target/linux/rockchip/Makefile b/target/linux/rockchip/Makefile
index 42d75e3b4f..75423f70ef 100644
--- a/target/linux/rockchip/Makefile
+++ b/target/linux/rockchip/Makefile
@@ -8,6 +8,7 @@ FEATURES:=ext4 audio usb usbgadget display gpio fpu pci pcie rootfs-part boot-pa
 SUBTARGETS:=armv8
 
 KERNEL_PATCHVER:=6.1
+KERNEL_TESTING_PATCHVER:=6.6
 
 define Target/Description
 	Build firmware image for Rockchip SoC devices.