change CMAKE_HOST_SYSTEM_PROCESSOR to CMAKE_SYSTEM_PROCESSOR

Change-Id: I8e379676091903e2af3909e6d90daf6d62b8232c
Signed-off-by: Galantsev, Dmitrii <dmitrii.galantsev@amd.com>

CMakeLists.txt

@@ -79,7 +79,7 @@ endif()
 ## Compiler flags
 set(CMAKE_CXX_FLAGS
  "${CMAKE_CXX_FLAGS} -Wall -Wextra -fno-rtti")
-if (${CMAKE_HOST_SYSTEM_PROCESSOR} STREQUAL "x86_64")
+if (${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
     set(CMAKE_CXX_FLAGS
      "${CMAKE_CXX_FLAGS} -m64 -msse -msse2")
 endif()