json-c: Add Guard for AOSP Devices

- Add TARGET_USES_AOSP_HARDWARE := true for AOSP Devices

Change-Id: Ic448fa97b15823fc65f45e0d51fbd410c4a089fb
Signed-off-by: Jackeagle <jackeagle102@gmail.com>
diff --git a/Android.mk b/Android.mk
index 0f40e90..28e540b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,5 +1,4 @@
-
-ifeq ($(filter msm8998,$(TARGET_BOARD_PLATFORM)),)
+ifneq ($(TARGET_USES_AOSP_HARDWARE), true)
 
 LIBJSON_ROOT := $(call my-dir)
 include $(CLEAR_VARS)