SWDEV-316665 - Add ATI_BITS_32 define to cmake build

Some logic in ROCclr relies on ATI_BITS_32 define

Change-Id: I2f0ef535e8d7717f9aa8646bdc80c09880bd2bee

rocclr/cmake/ROCclr.cmake

@@ -95,6 +95,10 @@ else()
   target_compile_definitions(rocclr PUBLIC ATI_OS_LINUX)
 endif()
 
+if(NOT CMAKE_CL_64)
+  target_compile_definitions(rocclr PUBLIC ATI_BITS_32)
+endif()
+
 target_compile_definitions(rocclr PUBLIC
   ATI_ARCH_X86
   LITTLEENDIAN_CPU