Checkpatch: Ignore interface/include paths

The headers in interface/include/mbedtls and interface/include/psa
are not in full control of the TF-M project so do not run any style
check on them.

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Change-Id: Ia4c95273149a0069f920749cc81a129db00f59ce
1 file changed