zynq: Add zynq_zc770 xm013 board support

ZC770 is a complete development board based on the Xilinx Zynq-7000
All Programmable SoC, similar to ZC70x board but which has four
different daughter cards, like XM010, XM011, XM012 and XM013

ZC770 XM013:
- 1GB DDR3
- 128 Mb Quad-SPI Flash(dual parallel)
- USB-UART
Signed-off-by: NJagannadha Sutradharudu Teki <jaganna@xilinx.com>

boards.cfg

@@ -361,6 +361,7 @@ Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc70x				-
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zed				-                                                                                                                                 Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_microzed			-                                                                                                                                 Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc770_xm010			zynq_zc770:ZC770_XM010                                                                                                            Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
+Active  arm	    armv7	   zynq	       xilinx	       zynq	   	   zynq_zc770_xm013			zynq_zc770:ZC770_XM013                                                                                                            Michal Simek <monstr@monstr.eu>:Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
 Active  arm         armv7:arm720t  tegra114    nvidia          dalmore             dalmore                              -                                                                                                                                 Tom Warren <twarren@nvidia.com>
 Active  arm         armv7:arm720t  tegra20     avionic-design  medcom-wide         medcom-wide                          -                                                                                                                                 Alban Bedel <alban.bedel@avionic-design.de>
 Active  arm         armv7:arm720t  tegra20     avionic-design  plutux              plutux                               -                                                                                                                                 Alban Bedel <alban.bedel@avionic-design.de>

include/configs/zynq_zc770.h

@@ -21,6 +21,11 @@
 # define CONFIG_ZYNQ_SDHCI0
 # define CONFIG_ZYNQ_SPI
 
+#elif defined(CONFIG_ZC770_XM013)
+# define CONFIG_ZYNQ_SERIAL_UART0
+# define CONFIG_ZYNQ_GEM1
+# define CONFIG_ZYNQ_GEM_PHY_ADDR1	7
+
 #else
 # define CONFIG_ZYNQ_SERIAL_UART0
 #endif