kernel: bump 5.15 to 5.15.164

No manual changes needed.

Link: https://github.com/openwrt/openwrt/pull/16027
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/generic/hack-5.15/902-debloat_proc.patch

@@ -29,7 +29,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
 
 --- a/fs/locks.c
 +++ b/fs/locks.c
-@@ -3008,6 +3008,8 @@ static const struct seq_operations locks
+@@ -3006,6 +3006,8 @@ static const struct seq_operations locks
  
  static int __init proc_locks_init(void)
  {

target/linux/generic/pending-5.15/100-compiler.h-only-include-asm-rwonce.h-for-kernel-code.patch

@@ -20,7 +20,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  #endif /* __KERNEL__ */
  
  /*
-@@ -252,6 +254,4 @@ static inline void *offset_to_ptr(const
+@@ -258,6 +260,4 @@ static inline void *offset_to_ptr(const
   */
  #define prevent_tail_call_optimization()	mb()