bcm968580xref: enable gpio support

Enable the gpio support (driver and command)
in the configuration of the board bcm968580xref.
Signed-off-by: NPhilippe Reynes <philippe.reynes@softathome.com>

configs/bcm968580xref_ram_defconfig

@@ -15,6 +15,7 @@ CONFIG_SUPPORT_RAW_INITRD=y
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTEFI_SELFTEST=y
+CONFIG_CMD_GPIO=y
 CONFIG_DOS_PARTITION=y
 CONFIG_ISO_PARTITION=y
 CONFIG_EFI_PARTITION=y
@@ -22,6 +23,8 @@ CONFIG_DEFAULT_DEVICE_TREE="bcm968580xref"
 # CONFIG_NET is not set
 CONFIG_BLK=y
 CONFIG_CLK=y
+CONFIG_DM_GPIO=y
+CONFIG_BCM6345_GPIO=y
 # CONFIG_MMC is not set
 CONFIG_SPECIFY_CONSOLE_INDEX=y
 # CONFIG_SPL_SERIAL_PRESENT is not set