sunxi: enable loopback device and f2fs support

Signed-off-by: Yousong Zhou <yszhou4tech@gmail.com>

target/linux/sunxi/config-4.4

@@ -65,6 +65,7 @@ CONFIG_BACKLIGHT_CLASS_DEVICE=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
 CONFIG_BACKLIGHT_PWM=y
 CONFIG_BINFMT_MISC=y
+CONFIG_BLK_DEV_LOOP=y
 CONFIG_BOUNCE=y
 # CONFIG_BPF_SYSCALL is not set
 CONFIG_CACHE_L2X0=y
@@ -110,6 +111,8 @@ CONFIG_CPU_TLB_V7=y
 CONFIG_CPU_V7=y
 CONFIG_CRC16=y
 CONFIG_CRC_T10DIF=y
+CONFIG_CRYPTO_AEAD=y
+CONFIG_CRYPTO_AEAD2=y
 CONFIG_CRYPTO_CRC32C=y
 CONFIG_CRYPTO_CRCT10DIF=y
 CONFIG_CRYPTO_DES=y
@@ -117,7 +120,10 @@ CONFIG_CRYPTO_DEV_SUN4I_SS=y
 CONFIG_CRYPTO_HASH=y
 CONFIG_CRYPTO_HASH2=y
 CONFIG_CRYPTO_HW=y
+CONFIG_CRYPTO_MANAGER=y
+CONFIG_CRYPTO_MANAGER2=y
 CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_NULL2=y
 CONFIG_CRYPTO_RNG2=y
 CONFIG_CRYPTO_SHA1=y
 CONFIG_CRYPTO_WORKQUEUE=y
@@ -151,6 +157,11 @@ CONFIG_ENABLE_MUST_CHECK=y
 # CONFIG_ENABLE_WARN_DEPRECATED is not set
 CONFIG_EXT4_FS=y
 CONFIG_EXTCON=y
+# CONFIG_F2FS_CHECK_FS is not set
+CONFIG_F2FS_FS=y
+# CONFIG_F2FS_FS_SECURITY is not set
+CONFIG_F2FS_FS_XATTR=y
+CONFIG_F2FS_STAT_FS=y
 CONFIG_FB=y
 CONFIG_FB_CFB_COPYAREA=y
 CONFIG_FB_CFB_FILLRECT=y
@@ -356,6 +367,7 @@ CONFIG_OLD_SIGACTION=y
 CONFIG_OLD_SIGSUSPEND3=y
 CONFIG_OUTER_CACHE=y
 CONFIG_OUTER_CACHE_SYNC=y
+CONFIG_PADATA=y
 CONFIG_PAGE_OFFSET=0xC0000000
 # CONFIG_PARTITION_ADVANCED is not set
 # CONFIG_PCI is not set
@@ -516,7 +528,9 @@ CONFIG_VDSO=y
 CONFIG_VECTORS_BASE=0xffff0000
 CONFIG_VFP=y
 CONFIG_VFPv3=y
+CONFIG_VHOST=y
 CONFIG_VHOST_NET=y
+CONFIG_VHOST_RING=y
 CONFIG_VIRTUALIZATION=y
 CONFIG_VM_EVENT_COUNTERS=y
 CONFIG_VT=y