Update the header path for ext4_utils.

Test: mmma system/vold

Change-Id: I805b8874b05b8043390c2cd3c143cc469913c067
(cherry picked from commit 989fec2769)

Android.mk

@@ -33,7 +33,6 @@ common_src_files := \
 	secontext.cpp \
 
 common_c_includes := \
-	system/extras/ext4_utils \
 	system/extras/f2fs_utils \
 	external/scrypt/lib/crypto \
 	frameworks/native/include \

Ext4Crypt.cpp

@@ -40,13 +40,13 @@
 #include <private/android_filesystem_config.h>
 
 #include "cryptfs.h"
-#include "ext4_crypt.h"
-#include "key_control.h"
 
 #define EMULATED_USES_SELINUX 0
 #define MANAGE_MISC_DIRS 0
 
 #include <cutils/fs.h>
+#include <ext4_utils/ext4_crypt.h>
+#include <ext4_utils/key_control.h>
 
 #include <android-base/file.h>
 #include <android-base/logging.h>

cryptfs.c

@@ -38,7 +38,8 @@
 #include <openssl/evp.h>
 #include <openssl/sha.h>
 #include <errno.h>
-#include <ext4.h>
+#include <ext4_utils/ext4.h>
+#include <ext4_utils/ext4_utils.h>
 #include <linux/kdev_t.h>
 #include <fs_mgr.h>
 #include <time.h>
@@ -57,7 +58,6 @@
 #include "VoldUtil.h"
 #include "crypto_scrypt.h"
 #include "Ext4Crypt.h"
-#include "ext4_utils.h"
 #include "f2fs_sparseblock.h"
 #include "CheckBattery.h"
 #include "Process.h"