shadow: Use wildcard for version number in bbappend.

Signed-off-by: Philip Tricca <flihp@twobit.us>
at: Use wildcard for version number in bbappend.

Signed-off-by: Philip Tricca <flihp@twobit.us>
linux-yocto: Remove bbappend for old 3.4 kernel.

Signed-off-by: Philip Tricca <flihp@twobit.us>