COMPMID-1499: Fixed issues to build for FP16 on Android

Change-Id: I7cd15e9115b5c6f544005528d69061751286be11
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/143708
Tested-by: Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele DiGiorgio <michele.digiorgio@arm.com>
diff --git a/opencl-1.2-stubs/opencl_stubs.c b/opencl-1.2-stubs/opencl_stubs.c
index a76eaa0..3bfe3a0 100755
--- a/opencl-1.2-stubs/opencl_stubs.c
+++ b/opencl-1.2-stubs/opencl_stubs.c
@@ -1,3 +1,4 @@
+#define CL_TARGET_OPENCL_VERSION 200
 #include <CL/cl.h>
 #include <stdio.h>