libexecinfo,openflow: Use gcc on mips
libexecinfo,openflow: Use gcc on mips

Fails with error on clang
error: return address can be determined only for current frame

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

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