drm/display: Reorder Kconfig symbols

The display kconfig helpers are not organized in any particular order,
so let's move them around to create an alphabetical order.
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://lore.kernel.org/r/20240327-kms-kconfig-helpers-v3-5-eafee11b84b3@kernel.orgSigned-off-by: Maxime Ripard <mripard@kernel.org>

drivers/gpu/drm/display/Kconfig

 # SPDX-License-Identifier: MIT
 
-config DRM_DISPLAY_DP_AUX_BUS
+config DRM_DISPLAY_HELPER
 	tristate
 	depends on DRM
-	depends on OF || COMPILE_TEST
+	help
+	  DRM helpers for display adapters.
 
-config DRM_DISPLAY_HELPER
+config DRM_DISPLAY_DP_AUX_BUS
 	tristate
 	depends on DRM
+	depends on OF || COMPILE_TEST
+
+config DRM_DISPLAY_DP_AUX_CEC
+	bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support"
+	depends on DRM && DRM_DISPLAY_HELPER
+	select DRM_DISPLAY_DP_HELPER
+	select CEC_CORE
 	help
-	  DRM helpers for display adapters.
+	  Choose this option if you want to enable HDMI CEC support for
+	  DisplayPort/USB-C to HDMI adapters.
+
+	  Note: not all adapters support this feature, and even for those
+	  that do support this they often do not hook up the CEC pin.
+
+config DRM_DISPLAY_DP_AUX_CHARDEV
+	bool "DRM DP AUX Interface"
+	depends on DRM && DRM_DISPLAY_HELPER
+	select DRM_DISPLAY_DP_HELPER
+	help
+	  Choose this option to enable a /dev/drm_dp_auxN node that allows to
+	  read and write values to arbitrary DPCD registers on the DP aux
+	  channel.
 
 config DRM_DISPLAY_DP_HELPER
 	bool
@@ -49,24 +70,3 @@ config DRM_DISPLAY_HDMI_HELPER
 	depends on DRM_DISPLAY_HELPER
 	help
 	  DRM display helpers for HDMI.
-
-config DRM_DISPLAY_DP_AUX_CHARDEV
-	bool "DRM DP AUX Interface"
-	depends on DRM && DRM_DISPLAY_HELPER
-	select DRM_DISPLAY_DP_HELPER
-	help
-	  Choose this option to enable a /dev/drm_dp_auxN node that allows to
-	  read and write values to arbitrary DPCD registers on the DP aux
-	  channel.
-
-config DRM_DISPLAY_DP_AUX_CEC
-	bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support"
-	depends on DRM && DRM_DISPLAY_HELPER
-	select DRM_DISPLAY_DP_HELPER
-	select CEC_CORE
-	help
-	  Choose this option if you want to enable HDMI CEC support for
-	  DisplayPort/USB-C to HDMI adapters.
-
-	  Note: not all adapters support this feature, and even for those
-	  that do support this they often do not hook up the CEC pin.