Runtime: fix a cl_gpgpu_bind_image_for_vme NULL SIGSEGV.
Runtime: fix a cl_gpgpu_bind_image_for_vme NULL SIGSEGV.

Signed-off-by: Yang Rong <78759e37dc7114caed18f74e7515c5cb519dbf6d@intel.com>
Reviewed-by: Ruiling Song <286a174c1339c6eff91abc41c3a1012c95030c95@intel.com>

wdv4758h/beignet,wdv4758h/beignet,wdv4758h/beignet,wdv4758h/beignet,wdv4758h/beignet