kernel: bump 4.9 to 4.9.197

kernel: bump 4.9 to 4.9.197

Refreshed all patches.

Altered patches:
- 804-crypto-support-layerscape.patch

Compile-tested on: ar71xx
Runtime-tested on: ar71xx

Compiling target layerscape before this patch shows that it's broken.
Fixing it is out-of-scope for bumping the kernel and will
be done in a later patch.

The altered patch is a sample change which leaves the target
exactly as it was before this bump.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>