Add sgemm_wg C kernel

tests/regression/sgemm_wg/common.h

@@ -0,0 +1,12 @@
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#define KERNEL_ARG_DEV_MEM_ADDR 0x7ffff000
+
+typedef struct {
+  uint32_t num_points;
+  uint64_t src_addr;
+  uint64_t dst_addr;  
+} kernel_arg_t;
+
+#endif