Group gen specific small cpp files together part 1

Change-Id: I554caee03f0abcb069fe38c6092c33b5f9eb04f9

runtime/enable_gens.cmake

@@ -69,7 +69,7 @@ macro(macro_for_each_platform)
     endif()
   endforeach()
 
-  foreach(PLATFORM_FILE "hw_info_${PLATFORM_IT_LOWER}.cpp")
+  foreach(PLATFORM_FILE "hw_info_${PLATFORM_IT_LOWER}.inl")
     list(APPEND RUNTIME_SRCS_${GEN_TYPE}_CPP_BASE ${GENX_PREFIX}/${PLATFORM_FILE})
   endforeach()
 

runtime/gen8/hw_info_gen8.cpp

@@ -20,7 +20,9 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include "hw_cmds.h"
+#ifdef SUPPORT_BDW
+#include "hw_info_bdw.inl"
+#endif
 
 namespace OCLRT {
 const char *GfxFamilyMapper<IGFX_GEN8_CORE>::name = "Gen8";

runtime/gen9/hw_info_gen9.cpp

@@ -20,7 +20,21 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
-#include "hw_cmds.h"
+#ifdef SUPPORT_BXT
+#include "hw_info_bxt.inl"
+#endif
+#ifdef SUPPORT_CFL
+#include "hw_info_cfl.inl"
+#endif
+#ifdef SUPPORT_GLK
+#include "hw_info_glk.inl"
+#endif
+#ifdef SUPPORT_KBL
+#include "hw_info_kbl.inl"
+#endif
+#ifdef SUPPORT_SKL
+#include "hw_info_skl.inl"
+#endif
 
 namespace OCLRT {
 const char *GfxFamilyMapper<IGFX_GEN9_CORE>::name = "Gen9";