drm/tegra: Clean up GPIO includes

The Tegra DRM drivers includes the legacy GPIO headers
<linux/gpio.h> and <linux/of_gpio.h> but what it really
uses is <linux/gpio/consumer.h> since only gpio_desc
structs are ever referenced.

Include the right header on the top level tegra/drm.h
file and drop all the surplus includes.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415122427.111769-1-linus.walleij@linaro.org

drivers/gpu/drm/tegra/dpaux.c

@@ -5,12 +5,10 @@
 
 #include <linux/clk.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of_device.h>
-#include <linux/of_gpio.h>
 #include <linux/pinctrl/pinconf-generic.h>
 #include <linux/pinctrl/pinctrl.h>
 #include <linux/pinctrl/pinmux.h>

drivers/gpu/drm/tegra/drm.h

@@ -9,7 +9,7 @@
 
 #include <linux/host1x.h>
 #include <linux/iova.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_edid.h>

drivers/gpu/drm/tegra/hdmi.c

@@ -7,7 +7,6 @@
 #include <linux/clk.h>
 #include <linux/debugfs.h>
 #include <linux/delay.h>
-#include <linux/gpio.h>
 #include <linux/hdmi.h>
 #include <linux/math64.h>
 #include <linux/module.h>

drivers/gpu/drm/tegra/sor.c

@@ -6,7 +6,6 @@
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/debugfs.h>
-#include <linux/gpio.h>
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/of_device.h>