Avoid conflicts while building with some CAF devices

Change-Id: I140acc359772bf38f8042af802e1de4c4d7040db
diff --git a/Android.mk b/Android.mk
index 139a10c..9d1e37d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,3 +1,6 @@
+
+ifeq ($(filter msm8998,$(TARGET_BOARD_PLATFORM)),)
+
 LIBJSON_ROOT := $(call my-dir)
 include $(CLEAR_VARS)
 LOCAL_MODULE := libjson
@@ -33,3 +36,5 @@
 LOCAL_MODULE_TAG := optional
 LOCAL_VENDOR_MODULE := true
 include $(BUILD_SHARED_LIBRARY)
+
+endif