Remove AOSP reference to utils.mk

Remove function calls from AOSP code to utils.mk
& replace them with actual definition.

Change-Id: I9262eefbb3ca75954a2e159696abc36c80df9c7b
CRs-fixed: 566287
diff --git a/fmapp2/Android.mk b/fmapp2/Android.mk
index 47c8a1b..d899d9c 100644
--- a/fmapp2/Android.mk
+++ b/fmapp2/Android.mk
@@ -10,7 +10,7 @@
         src/com/caf/fmradio/IFMTransmitterService.aidl \
 
 
-ifeq ($(call is-platform-sdk-version-at-least,11),true)
+ifeq (1,$(filter 1,$(shell echo "$$(( $(PLATFORM_SDK_VERSION) >= 11 ))" )))
 LOCAL_SRC_FILES +=  $(call all-java-files-under, src/com/caf/hc_utils)
 else
 LOCAL_SRC_FILES +=  $(call all-java-files-under, src/com/caf/utils)