ARM: dts: Add minimal support for Droid Bionic xt875

We already have folks booting Droid Bionic with Droid 4 dts, but it is
a different hardware with no keyboard.

Let's start adding device specific support for Droid bionic by making
current omap4-droid4-xt894 a common file and including it.

Cc: Merlijn Wajer <merlijn@wizzup.org>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: Sebastian Reichel <sre@kernel.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/Makefile

@@ -765,6 +765,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-wega-rdk.dtb \
 	am335x-osd3358-sm-red.dtb
 dtb-$(CONFIG_ARCH_OMAP4) += \
+	omap4-droid-bionic-xt875.dtb \
 	omap4-droid4-xt894.dtb \
 	omap4-duovero-parlor.dtb \
 	omap4-kc1.dtb \

arch/arm/boot/dts/omap4-droid-bionic-xt875.dts

+// SPDX-License-Identifier: GPL-2.0-only
+/dts-v1/;
+
+#include "motorola-mapphone-common.dtsi"
+
+/ {
+	model = "Motorola Droid Bionic XT875";
+	compatible = "motorola,droid-bionic", "ti,omap4430", "ti,omap4";
+};