configs: mt8512: enable fastboot and USB host related configs

Enable mtu3, xhci, tphy drivers.
Device mode: enable fastboot;
Host mode: enable USB, FAT commands, and fixed regulator,
mass storage drivers;
Due to device mode is enabled by default, comment out
the host mode config here.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>

configs/mt8512_bm1_emmc_defconfig

@@ -9,11 +9,16 @@ CONFIG_DM_GPIO=y
 CONFIG_TARGET_MT8512=y
 CONFIG_DEFAULT_DEVICE_TREE="mt8512-bm1-emmc"
 CONFIG_FIT=y
+CONFIG_EFI_PARTITION=y
 CONFIG_FIT_SIGNATURE=y
 CONFIG_DEFAULT_FDT_FILE="mt8512-bm1-emmc.dtb"
 CONFIG_SYS_PROMPT="MT8512> "
 CONFIG_CMD_BOOTMENU=y
 CONFIG_CMD_MMC=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_FAT=y
+CONFIG_CMD_FS_GENERIC=y
+# CONFIG_DOS_PARTITION is not set
 CONFIG_ENV_OVERWRITE=y
 CONFIG_REGMAP=y
 CONFIG_SYSCON=y
@@ -26,6 +31,16 @@ CONFIG_PINCONF=y
 CONFIG_PINCTRL_MT8512=y
 CONFIG_RAM=y
 CONFIG_BAUDRATE=921600
+CONFIG_USB_FUNCTION_FASTBOOT=y
+CONFIG_FASTBOOT_BUF_ADDR=0x56000000
+CONFIG_FASTBOOT_BUF_SIZE=0x1e00000
+CONFIG_FASTBOOT_FLASH=y
+CONFIG_FASTBOOT_FLASH_MMC_DEV=0
+CONFIG_FASTBOOT_MMC_BOOT1_SUPPORT=y
+CONFIG_PHY=y
+CONFIG_PHY_MTK_TPHY=y
+CONFIG_DM_REGULATOR=y
+CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_SERIAL=y
 CONFIG_MTK_SERIAL=y
 CONFIG_TIMER=y
@@ -33,3 +48,14 @@ CONFIG_MTK_TIMER=y
 CONFIG_WDT=y
 CONFIG_WDT_MTK=y
 CONFIG_LZO=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_DM_USB_GADGET=y
+CONFIG_USB_XHCI_HCD=y
+CONFIG_USB_MTU3=y
+# CONFIG_USB_MTU3_HOST is not set
+CONFIG_USB_STORAGE=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="MediaTek"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0e8d
+CONFIG_USB_GADGET_PRODUCT_NUM=0x201c