grouper: update prebuilt kernel

22b4fcd Revert "net: wireless: bcmdhd: Fix WD wakelock behavior"
f4d9951 use clamp_t in UNAME26 fix
96b6693 kernel/sys.c: fix stack memory content leak via UNAME26

Change-Id: I8314d8fa78fd2c43f6e63402e40cf439e9247575
1 file changed