switch to u-boot 2016.5 so it would build in Yocto 2.1 - no more compiler-gcc6.h missing error

u-boot-tree/configs/elphel393_defconfig

@@ -24,3 +24,11 @@ CONFIG_CMD_NAND=y
 CONFIG_DM_I2C=n
 
 CONFIG_CMD_SETEXPR=y
+
+CONFIG_DM_GPIO=n
+CONFIG_EFI_LOADER=n
+CONFIG_CMD_BOOTEFI=n
+
+CONFIG_CMD_FAT=y
+CONFIG_CMD_MMC=y
+CONFIG_HUSH_PARSER=y

u-boot-tree/include/configs/elphel393.h

@@ -25,6 +25,7 @@
 #define CONFIG_ZYNQ_GEM0
 #define CONFIG_ZYNQ_GEM_PHY_ADDR0	0
 
+#define CONFIG_ZYNQ_SDHCI
 #define CONFIG_ZYNQ_SDHCI0
 
 #define CONFIG_SYS_NO_FLASH
@@ -74,6 +75,9 @@
 
 #include <configs/zynq-common.h>
 
+/* Need to define it - otherwise error "FDT creation failed!"*/
+#define CONFIG_SYS_SDRAM_BASE       0
+
 #undef CONFIG_SYS_PROMPT
 #undef CONFIG_BOOTDELAY
 #undef CONFIG_EXTRA_ENV_SETTINGS