arm64: defconfig: Enable ITE IT6263 driver

ITE IT6263 LVDS to HDMI converter is populated on NXP IMX-LVDS-HDMI
and IMX-DLVDS-HDMI adapter cards.  The adapter cards can connect to
i.MX8MP EVK base board to support video output through HDMI connectors.
Build the ITE IT6263 driver as a module.

Signed-off-by: Liu Ying <victor.liu@nxp.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

Author: Liu Ying

arch/arm64/configs/defconfig

@@ -900,6 +900,7 @@ CONFIG_DRM_PANEL_SITRONIX_ST7703=m
 CONFIG_DRM_PANEL_TRULY_NT35597_WQXGA=m
 CONFIG_DRM_PANEL_VISIONOX_VTDR6130=m
 CONFIG_DRM_FSL_LDB=m
+CONFIG_DRM_ITE_IT6263=m
 CONFIG_DRM_LONTIUM_LT8912B=m
 CONFIG_DRM_LONTIUM_LT9611=m
 CONFIG_DRM_LONTIUM_LT9611UXC=m