arm: baltos: move the board to CONFIG_BLK

Use DM for both MMC and USB subsystems and use dedicated DTS
for U-Boot configuration.

Disable SPL support for GPIO and remove EVMSK leftover for
DDR power control via GPIO.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/configs/am335x_baltos_defconfig b/configs/am335x_baltos_defconfig
index a61b13b..4e68956 100644
--- a/configs/am335x_baltos_defconfig
+++ b/configs/am335x_baltos_defconfig
@@ -1,6 +1,5 @@
 CONFIG_ARM=y
 CONFIG_ARCH_OMAP2PLUS=y
-CONFIG_SPL_GPIO_SUPPORT=y
 CONFIG_SPL_LIBCOMMON_SUPPORT=y
 CONFIG_SPL_LIBGENERIC_SUPPORT=y
 CONFIG_AM33XX=y
@@ -39,17 +38,22 @@
 CONFIG_MTDIDS_DEFAULT="nand0=omap2-nand.0"
 CONFIG_MTDPARTS_DEFAULT="mtdparts=omap2-nand.0:128k(SPL),128k(SPL.backup1),128k(SPL.backup2),128k(SPL.backup3),1920k(u-boot),-(UBI)"
 CONFIG_CMD_UBI=y
+CONFIG_OF_CONTROL=y
+CONFIG_DEFAULT_DEVICE_TREE="am335x-baltos"
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_BOOTCOUNT_LIMIT=y
 CONFIG_SYS_OMAP24_I2C_SPEED=1000
+CONFIG_DM_MMC=y
 CONFIG_MMC_OMAP_HS=y
+CONFIG_MMC_OMAP_HS_ADMA=y
 CONFIG_NAND=y
 CONFIG_PHY_ADDR_ENABLE=y
-CONFIG_DRIVER_TI_CPSW=y
 CONFIG_MII=y
+CONFIG_DRIVER_TI_CPSW=y
 CONFIG_SPI=y
 CONFIG_OMAP3_SPI=y
 CONFIG_USB=y
+CONFIG_DM_USB=y
 CONFIG_USB_MUSB_HOST=y
 CONFIG_USB_MUSB_GADGET=y
 CONFIG_USB_MUSB_DSPS=y
@@ -59,7 +63,7 @@
 CONFIG_USB_GADGET_VENDOR_NUM=0x0403
 CONFIG_USB_GADGET_PRODUCT_NUM=0xbd00
 CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_USB_FUNCTION_MASS_STORAGE=y
 CONFIG_USB_ETHER=y
 CONFIG_USBNET_HOST_ADDR="de:ad:be:af:00:00"
 CONFIG_FAT_WRITE=y
-CONFIG_OF_LIBFDT=y