Add sgemm_wg C kernel

tests/regression/sgemm_wg/kernel.cpp

@@ -0,0 +1,18 @@
+#include <stdint.h>
+#include <vx_intrinsics.h>
+#include <vx_spawn.h>
+#include "common.h"
+
+void kernel_body(int task_id, kernel_arg_t* __UNIFORM__ arg) {
+	uint32_t num_points = arg->num_points;
+	float* src_ptr = (float*)arg->src_addr;
+	float* dst_ptr = (float*)arg->dst_addr;
+
+	dst_ptr[task_id] = 2 * src_ptr[task_id];
+}
+
+int main() {
+	kernel_arg_t* arg = (kernel_arg_t*)KERNEL_ARG_DEV_MEM_ADDR;
+	vx_spawn_tasks(arg->num_points, (vx_spawn_tasks_cb)kernel_body, arg);
+	return 0;
+}