nonclangable.conf: Add x264/x86
nonclangable.conf: Add x264/x86

clang hangs while compiling some source files
use gcc for now.

Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

kraj/meta-clang,kraj/meta-clang,kraj/meta-clang