MAINTAINERS: da7280 updates to the Dialog Semiconductor search terms

This patch adds the da7280 bindings doc and driver to the Dialog
Semiconductor support list.
Signed-off-by: Roy Im <roy.im.opensource@diasemi.com>
Link: https://lore.kernel.org/r/e2a01173699486519f8da85b9283c6af8481fbdb.1606320459.git.Roy.Im@diasemi.comSigned-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

MAINTAINERS

@@ -5080,6 +5080,7 @@ M:	Support Opensource <support.opensource@diasemi.com>
 S:	Supported
 W:	http://www.dialog-semiconductor.com/products
 F:	Documentation/devicetree/bindings/input/da90??-onkey.txt
+F:	Documentation/devicetree/bindings/input/dlg,da72??.txt
 F:	Documentation/devicetree/bindings/mfd/da90*.txt
 F:	Documentation/devicetree/bindings/regulator/da92*.txt
 F:	Documentation/devicetree/bindings/regulator/slg51000.txt
@@ -5090,6 +5091,7 @@ F:	Documentation/hwmon/da90??.rst
 F:	drivers/gpio/gpio-da90??.c
 F:	drivers/hwmon/da90??-hwmon.c
 F:	drivers/iio/adc/da91??-*.c
+F:	drivers/input/misc/da72??.[ch]
 F:	drivers/input/misc/da90??_onkey.c
 F:	drivers/input/touchscreen/da9052_tsi.c
 F:	drivers/leds/leds-da90??.c