zynq-common: Add SPL SPI offset, size configs

Define CONFIG_SYS_SPI_ARGS_OFFS, CONFIG_SYS_SPI_ARGS_SIZE
and CONFIG_SYS_SPI_KERNEL_OFFS which will be used in SPL
spi mode. These macros defines the device tree offset, size
and the kernel image offset in flash respectively.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>

include/configs/zynq-common.h

@@ -355,6 +355,10 @@
 #define CONFIG_SPL_SPI_LOAD
 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x100000
+#define CONFIG_SYS_SPI_ARGS_OFFS	0x200000
+#define CONFIG_SYS_SPI_ARGS_SIZE	0x80000
+#define CONFIG_SYS_SPI_KERNEL_OFFS	(CONFIG_SYS_SPI_ARGS_OFFS + \
+					CONFIG_SYS_SPI_ARGS_SIZE)
 #endif
 
 /* for booting directly linux */