ARM: rmobile: Enable DTO support on Gen3

Enable support for applying DT overlays on Gen3. This is convenient
for handling extra additional hardware, like ie. the Kingfisher.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

configs/r8a7795_salvator-x_defconfig

@@ -54,4 +54,5 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_SMBIOS_MANUFACTURER=""

configs/r8a7795_ulcb_defconfig

@@ -55,4 +55,5 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_SMBIOS_MANUFACTURER=""

configs/r8a7796_salvator-x_defconfig

@@ -55,4 +55,5 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_SMBIOS_MANUFACTURER=""

configs/r8a7796_ulcb_defconfig

@@ -56,4 +56,5 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_SMBIOS_MANUFACTURER=""

configs/r8a77970_eagle_defconfig

@@ -54,4 +54,5 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_SMBIOS_MANUFACTURER=""

configs/r8a77995_draak_defconfig

@@ -58,4 +58,5 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
+CONFIG_OF_LIBFDT_OVERLAY=y
 CONFIG_SMBIOS_MANUFACTURER=""