ARM: dts: motorola-mapphone: Drop second ti,wlcore compatible value

The TI wlcore DT bindings specify using a single compatible value for
each variant, and the Linux kernel driver matches against the first
compatible value since commit 078b30da ("wlcore: add wl1285
compatible") in v4.13.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>