board: sl28: enable sl28cpld support

Enable the GPIO and watchdog driver. Don't start the watchdog
automatically, though.

Signed-off-by: Michael Walle <michael@walle.cc>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>

configs/kontron_sl28_defconfig

@@ -42,12 +42,14 @@ CONFIG_CMD_GREPENV=y
 CONFIG_CMD_NVEDIT_EFI=y
 CONFIG_CMD_DFU=y
 CONFIG_CMD_DM=y
+CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_PCI=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
+CONFIG_CMD_WDT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_EFIDEBUG=y
 CONFIG_CMD_RNG=y
@@ -69,8 +71,10 @@ CONFIG_DDR_ECC=y
 CONFIG_ECC_INIT_VIA_DDRCONTROLLER=y
 CONFIG_DFU_MMC=y
 CONFIG_DFU_SF=y
+CONFIG_SL28CPLD_GPIO=y
 CONFIG_I2C_SET_DEFAULT_BUS_NUM=y
 CONFIG_I2C_MUX=y
+CONFIG_SL28CPLD=y
 CONFIG_MMC_HS400_SUPPORT=y
 CONFIG_FSL_ESDHC=y
 CONFIG_FSL_ESDHC_SUPPORT_ADMA2=y
@@ -102,6 +106,10 @@ CONFIG_USB_DWC3=y
 CONFIG_USB_DWC3_LAYERSCAPE=y
 CONFIG_USB_GADGET=y
 CONFIG_USB_GADGET_DOWNLOAD=y
+# CONFIG_WATCHDOG is not set
+# CONFIG_WATCHDOG_AUTOSTART is not set
+CONFIG_WDT=y
+CONFIG_WDT_SL28CPLD=y
 CONFIG_OF_LIBFDT_ASSUME_MASK=0x0
 CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_EFI_SET_TIME=y