ext4_utils: Add NO_SECURE_DISCARD boardconfig option

* In N CFLAGS in device tress are prohibited

Change-Id: Iea6a4145d1e460d61115b7d6f5a754996c7c9b28

Author: luca020400

ext4_utils/Android.mk

@@ -85,6 +85,10 @@ ifeq ($(BOARD_SUPPRESS_EMMC_WIPE),true)
     LOCAL_CFLAGS += -DSUPPRESS_EMMC_WIPE
 endif
 
+ifeq ($(BOARD_NO_SECURE_DISCARD),true)
+    LOCAL_CFLAGS += -DNO_SECURE_DISCARD
+endif
+
 include $(BUILD_SHARED_LIBRARY)
 
 
@@ -105,6 +109,10 @@ ifeq ($(BOARD_SUPPRESS_EMMC_WIPE),true)
     LOCAL_CFLAGS += -DSUPPRESS_EMMC_WIPE
 endif
 
+ifeq ($(BOARD_NO_SECURE_DISCARD),true)
+    LOCAL_CFLAGS += -DNO_SECURE_DISCARD
+endif
+
 include $(BUILD_STATIC_LIBRARY)