fbdev: omapfb: panel-sharp-ls037v7dw01: fix included headers

The driver is using gpiod API so it should include gpio/consumer.h and
not gpio.gh or of_gpio.h.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>