SWDEV-282289 - Do not compare Pre-processor directive with string.

Change-Id: I9cd76c57a5cdea8059f69cc56ba9dca278b4d04c


[ROCm/clr commit: bf677f91af]

projects/clr/hipamd/CMakeLists.txt

@@ -49,7 +49,7 @@ else()
   set(_pchStatus 0)
 endif()
 
-if(__HIP_USE_CMPXCHG_FOR_FP_ATOMICS MATCHES "ON")
+if(__HIP_USE_CMPXCHG_FOR_FP_ATOMICS)
   add_definitions(-D__HIP_USE_CMPXCHG_FOR_FP_ATOMICS)
 endif()