rockchip: rock-pi-n8: Enable on board devices

Enable common on board devices for ROCKPi N8.

- USB 2.0 Host
- USB 2.0 OTG/Gadget
- HDMI Out
Signed-off-by: NSuniel Mahesh <sunil@amarulasolutions.com>
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Reviewed-by: NKever Yang <kever.yang@rock-chips.com>

configs/rock-pi-n8-rk3288_defconfig

@@ -11,8 +11,10 @@ CONFIG_NR_DRAM_BANKS=1
 CONFIG_DEBUG_UART_BASE=0xff690000
 CONFIG_DEBUG_UART_CLOCK=24000000
 CONFIG_DEBUG_UART=y
+# CONFIG_ANDROID_BOOT_IMAGE is not set
 CONFIG_USE_PREBOOT=y
 CONFIG_SILENT_CONSOLE=y
+# CONFIG_CONSOLE_MUX is not set
 CONFIG_DEFAULT_FDT_FILE="rk3288-rock-pi-n8.dtb"
 CONFIG_DISPLAY_BOARDINFO_LATE=y
 CONFIG_SPL_STACK_R=y
@@ -22,6 +24,7 @@ CONFIG_CMD_GPIO=y
 CONFIG_CMD_GPT=y
 CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIME=y
@@ -63,4 +66,17 @@ CONFIG_RAM=y
 CONFIG_SPL_RAM=y
 CONFIG_DEBUG_UART_SHIFT=2
 CONFIG_SYSRESET=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_GENERIC=y
+CONFIG_USB_DWC2=y
+CONFIG_ROCKCHIP_USB2_PHY=y
+CONFIG_USB_KEYBOARD=y
+# CONFIG_USB_KEYBOARD_FN_KEYS is not set
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_DWC2_OTG=y
+CONFIG_DM_VIDEO=y
+CONFIG_DISPLAY=y
+CONFIG_VIDEO_ROCKCHIP=y
+CONFIG_DISPLAY_ROCKCHIP_HDMI=y
 CONFIG_ERRNO_STR=y