drm/bridge/tdp158: fix build failure

ARCH=arm build fails with:

  CC [M]  drivers/gpu/drm/bridge/ti-tdp158.o
../drivers/gpu/drm/bridge/ti-tdp158.c: In function ‘tdp158_enable’:
../drivers/gpu/drm/bridge/ti-tdp158.c:31:9: error: implicit declaration of function ‘gpiod_set_value_cansleep’ [-Werror=implicit-function-declaration]
   31 |         gpiod_set_value_cansleep(tdp158->enable, 1);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
../drivers/gpu/drm/bridge/ti-tdp158.c: In function ‘tdp158_probe’:
../drivers/gpu/drm/bridge/ti-tdp158.c:80:26: error: implicit declaration of function ‘devm_gpiod_get_optional’; did you mean ‘devm_regulator_get_optional’? [-Werror=implicit-function-declaration]
   80 |         tdp158->enable = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW);
      |                          ^~~~~~~~~~~~~~~~~~~~~~~
      |                          devm_regulator_get_optional
../drivers/gpu/drm/bridge/ti-tdp158.c:80:65: error: ‘GPIOD_OUT_LOW’ undeclared (first use in this function)
   80 |         tdp158->enable = devm_gpiod_get_optional(dev, "enable", GPIOD_OUT_LOW);
      |                                                                 ^~~~~~~~~~~~~
../drivers/gpu/drm/bridge/ti-tdp158.c:80:65: note: each undeclared identifier is reported only once for each function it appears in

Add the proper gpio consumer #include to fix this, and juggle the
include order to be a bit more pleasant on the eye while at it.

Fixes: a1571002 ("drm/bridge: add support for TI TDP158")
Cc: Marc Gonzalez <mgonzalez@freebox.fr>
Cc: Robert Foss <rfoss@kernel.org>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Cc: Neil Armstrong <neil.armstrong@linaro.org>
Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com>
Cc: Jonas Karlman <jonas@kwiboo.se>
Cc: Jernej Skrabec <jernej.skrabec@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240904085206.3331553-1-jani.nikula@intel.com


Signed-off-by: Jani Nikula <jani.nikula@intel.com>