ARM: qcom_defconfig: add anx78xx HDMI bridge support

Add the Analogix anx78xx driver so that the external display over HDMI
can be used on Nexus 5 phones.
Reviewed-by: Georgi Djakov <georgi.djakov@linaro.org>
Signed-off-by: Brian Masney <masneyb@onstation.org>
Link: https://lore.kernel.org/r/20191024103140.10077-3-masneyb@onstation.orgSigned-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arch/arm/configs/qcom_defconfig

@@ -148,6 +148,7 @@ CONFIG_MEDIA_SUPPORT=y
 CONFIG_DRM=y
 CONFIG_DRM_MSM=m
 CONFIG_DRM_PANEL_SIMPLE=y
+CONFIG_DRM_ANALOGIX_ANX78XX=m
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 # CONFIG_LCD_CLASS_DEVICE is not set