ARM: zynq: Update Arty Z7 support for 2017.1

Make necessary changes to Arty Z7 defconfig so that it works with
petalinux 2017.1.

configs/zynq_artyz7_defconfig

@@ -1,14 +1,18 @@
 CONFIG_ARM=y
 CONFIG_SYS_CONFIG_NAME="zynq_artyz7"
 CONFIG_ARCH_ZYNQ=y
+CONFIG_SYS_TEXT_BASE=0x4000000
 CONFIG_DEFAULT_DEVICE_TREE="zynq-artyz7"
-CONFIG_SPL=y
 CONFIG_FIT=y
 CONFIG_FIT_VERBOSE=y
 CONFIG_FIT_SIGNATURE=y
-CONFIG_BOOTDELAY=3
+CONFIG_SYS_NO_FLASH=y
+# CONFIG_DISPLAY_CPUINFO is not set
+CONFIG_SPL=y
+CONFIG_SPL_OS_BOOT=y
 CONFIG_HUSH_PARSER=y
 CONFIG_SYS_PROMPT="Zynq> "
+CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_IMLS is not set
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_MMC=y
@@ -28,21 +32,30 @@ CONFIG_CMD_EXT4=y
 CONFIG_CMD_EXT4_WRITE=y
 CONFIG_CMD_FAT=y
 CONFIG_CMD_FS_GENERIC=y
+CONFIG_OF_EMBED=y
 CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_SPL_DM_SEQ_ALIAS=y
+CONFIG_DFU_MMC=y
+CONFIG_DFU_RAM=y
+CONFIG_DM_GPIO=y
+CONFIG_DM_MMC=y
 CONFIG_ZYNQ_SDHCI=y
+CONFIG_MMC_SDHCI=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
 CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_DM_ETH=y
 CONFIG_ZYNQ_GEM=y
 CONFIG_DEBUG_UART=y
 CONFIG_DEBUG_UART_ZYNQ=y
 CONFIG_DEBUG_UART_BASE=0xe0000000
 CONFIG_DEBUG_UART_CLOCK=50000000
 CONFIG_ZYNQ_QSPI=y
 CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_ULPI_VIEWPORT=y
 CONFIG_USB_ULPI=y
+CONFIG_USB_STORAGE=y
 CONFIG_USB_GADGET=y
 CONFIG_CI_UDC=y
 CONFIG_USB_GADGET_DOWNLOAD=y