[cmake] Added target static_check for static code analysis

- Added static code analysis using cppcheck
- Fixed couple of warnings reported by cppcheck

Change-Id: Ie3b9b06e95ada322e7dc2ce3d6b91831e870198d


[ROCm/hip commit: 7930c03e42]

projects/hip/src/hip_fp16.cpp

@@ -448,7 +448,7 @@ __device__  __half2 __lowhigh2highlow(const __half2 a) {
 
 __device__  __half2 __lows2half2(const __half2 a, const __half2 b) {
   __half2 c;
-  c.y = a.x;
+  c.x = a.x;
   c.y = b.x;
   return c;
 }