ARM: socfpga_defconfig: enable BLK_DEV_LOOP config option

Add CONFIG_BLK_DEV_LOOP and clean up socfpga_defconfig by make
savedefconfig.
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>

arch/arm/configs/socfpga_defconfig

@@ -9,27 +9,20 @@ CONFIG_NAMESPACES=y
 CONFIG_BLK_DEV_INITRD=y
 CONFIG_EMBEDDED=y
 CONFIG_PROFILING=y
-CONFIG_OPROFILE=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_LBDAF is not set
-# CONFIG_BLK_DEV_BSG is not set
-# CONFIG_IOSCHED_DEADLINE is not set
-# CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_SOCFPGA=y
 CONFIG_ARM_THUMBEE=y
-CONFIG_PCI=y
-CONFIG_PCI_MSI=y
-CONFIG_PCIE_ALTERA=y
-CONFIG_PCIE_ALTERA_MSI=y
 CONFIG_SMP=y
 CONFIG_NR_CPUS=2
-CONFIG_AEABI=y
 CONFIG_HIGHMEM=y
 CONFIG_ZBOOT_ROM_TEXT=0x0
 CONFIG_ZBOOT_ROM_BSS=0x0
 CONFIG_VFP=y
 CONFIG_NEON=y
+CONFIG_OPROFILE=y
+CONFIG_MODULES=y
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_LBDAF is not set
+# CONFIG_BLK_DEV_BSG is not set
 CONFIG_NET=y
 CONFIG_PACKET=y
 CONFIG_UNIX=y
@@ -48,6 +41,10 @@ CONFIG_CAN=y
 CONFIG_CAN_C_CAN=y
 CONFIG_CAN_C_CAN_PLATFORM=y
 CONFIG_CAN_DEBUG_DEVICES=y
+CONFIG_PCI=y
+CONFIG_PCI_MSI=y
+CONFIG_PCIE_ALTERA=y
+CONFIG_PCIE_ALTERA_MSI=y
 CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
 CONFIG_DEVTMPFS=y
 CONFIG_DEVTMPFS_MOUNT=y
@@ -60,7 +57,7 @@ CONFIG_MTD_SPI_NOR=y
 # CONFIG_MTD_SPI_NOR_USE_4K_SECTORS is not set
 CONFIG_SPI_CADENCE_QUADSPI=y
 CONFIG_OF_OVERLAY=y
-CONFIG_OF_CONFIGFS=y
+CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_COUNT=2
 CONFIG_BLK_DEV_RAM_SIZE=8192
@@ -131,12 +128,12 @@ CONFIG_DMADEVICES=y
 CONFIG_PL330_DMA=y
 CONFIG_DMATEST=m
 CONFIG_FPGA=y
-CONFIG_FPGA_REGION=y
 CONFIG_FPGA_MGR_SOCFPGA=y
 CONFIG_FPGA_MGR_SOCFPGA_A10=y
 CONFIG_FPGA_BRIDGE=y
 CONFIG_SOCFPGA_FPGA_BRIDGE=y
 CONFIG_ALTERA_FREEZE_BRIDGE=y
+CONFIG_FPGA_REGION=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT2_FS_XATTR=y
 CONFIG_EXT2_FS_POSIX_ACL=y