configs: imx93_var_som: Add USB support.

Enable the `usb` command and some USB drivers.

Signed-off-by: Mathieu Othacehe <othacehe@gnu.org>
diff --git a/configs/imx93_var_som_defconfig b/configs/imx93_var_som_defconfig
index 14922f2..662bdcc 100644
--- a/configs/imx93_var_som_defconfig
+++ b/configs/imx93_var_som_defconfig
@@ -69,6 +69,7 @@
 CONFIG_CMD_MMC=y
 CONFIG_CMD_POWEROFF=y
 CONFIG_CMD_READ=y
+CONFIG_CMD_USB=y
 CONFIG_CMD_WDT=y
 CONFIG_BOOTP_PREFER_SERVERIP=y
 CONFIG_CMD_SNTP=y
@@ -131,6 +132,14 @@
 CONFIG_FSL_LPUART=y
 CONFIG_DM_THERMAL=y
 CONFIG_IMX_TMU=y
+CONFIG_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="FSL"
+CONFIG_USB_GADGET_VENDOR_NUM=0x1fc9
+CONFIG_USB_GADGET_PRODUCT_NUM=0x0152
+CONFIG_CI_UDC=y
+CONFIG_USB_PORT_AUTO=y
 CONFIG_ULP_WATCHDOG=y
 CONFIG_WDT=y
 CONFIG_LZO=y