Fix for __usad issue (#1972)

Fixes #1930

[ROCm/clr commit: 13b73692d8]

projects/clr/hipamd/include/hip/hcc_detail/device_functions.h

@@ -230,7 +230,7 @@ __device__ static inline unsigned int __urhadd(unsigned int x, unsigned int y) {
     return (x + y + 1) >> 1;
 }
 __device__ static inline unsigned int __usad(unsigned int x, unsigned int y, unsigned int z) {
-    return __ockl_sad_u32(x, y, z);
+    return __ockl_sadd_u32(x, y, z);
 }
 
 __device__ static inline unsigned int __lane_id() { return  __mbcnt_hi(-1, __mbcnt_lo(-1, 0)); }

projects/clr/hipamd/include/hip/hcc_detail/device_library_decls.h

@@ -44,7 +44,7 @@ extern "C" __device__ __attribute__((const)) uint __ockl_mul24_u32(uint, uint);
 extern "C" __device__ __attribute__((const)) int __ockl_mul24_i32(int, int);
 extern "C" __device__ __attribute__((const)) uint __ockl_mul_hi_u32(uint, uint);
 extern "C" __device__ __attribute__((const)) int __ockl_mul_hi_i32(int, int);
-extern "C" __device__ __attribute__((const)) uint __ockl_sad_u32(uint, uint, uint);
+extern "C" __device__ __attribute__((const)) uint __ockl_sadd_u32(uint, uint, uint);
 
 extern "C" __device__ __attribute__((const)) uchar __ockl_clz_u8(uchar);
 extern "C" __device__ __attribute__((const)) ushort __ockl_clz_u16(ushort);