GBE: Fixed GBE: Fix some builtin functions' return value.
GBE: Fixed GBE: Fix some builtin functions' return value.

Signed-off-by: Zhigang Gong <e04a7b9b70b1e4c6318cf117dcd1a9056e14b97a@linux.intel.com>
Tested-by: Sun, Yi <a7ab858552be010621b3b5c596bf4feb1309fb3c@intel.com>

ignatenkobrain/beignet,wdv4758h/beignet,wdv4758h/beignet,freedesktop-unofficial-mirror/beignet,ignatenkobrain/beignet,freedesktop-unofficial-mirror/beignet,wdv4758h/beignet,freedesktop-unofficial-mirror/beignet,ignatenkobrain/beignet,zhenyw/beignet,zhenyw/beignet,ignatenkobrain/beignet,zhenyw/beignet,wdv4758h/beignet,zhenyw/beignet,zhenyw/beignet,wdv4758h/beignet,freedesktop-unofficial-mirror/beignet,ignatenkobrain/beignet