package/weston: drop GBM dependency from DRM option

upstream advocated that DRM backend can be built without GBM:
https://gitlab.freedesktop.org/wayland/weston/-/merge_requests/791
so drop dependencies on
BR2_PACKAGE_MESA3D_OPENGL_EGL || BR2_PACKAGE_IMX_GPU_VIV_OUTPUT_WL
to allow DRM to be the default backend when fbdev will be removed in the
follow-up patch

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/weston/Config.in

@@ -40,12 +40,8 @@ config BR2_PACKAGE_WESTON_DEFAULT_FBDEV
 
 config BR2_PACKAGE_WESTON_DEFAULT_DRM
 	bool "drm"
-	depends on BR2_PACKAGE_MESA3D_OPENGL_EGL || BR2_PACKAGE_IMX_GPU_VIV_OUTPUT_WL
 	select BR2_PACKAGE_WESTON_DRM
 
-comment "drm backend needs mesa3d w/ EGL driver"
-	depends on !BR2_PACKAGE_MESA3D_OPENGL_EGL && !BR2_PACKAGE_IMX_GPU_VIV_OUTPUT_WL
-
 config BR2_PACKAGE_WESTON_DEFAULT_HEADLESS
 	bool "headless"
 	select BR2_PACKAGE_WESTON_HEADLESS
@@ -74,11 +70,6 @@ config BR2_PACKAGE_WESTON_DEFAULT_COMPOSITOR
 
 config BR2_PACKAGE_WESTON_DRM
 	bool "DRM compositor"
-	depends on BR2_PACKAGE_MESA3D_OPENGL_EGL || BR2_PACKAGE_IMX_GPU_VIV_OUTPUT_WL
-
-# Uses libgbm from mesa3d
-comment "DRM compositor needs an OpenGL EGL backend provided by mesa3d"
-	depends on !BR2_PACKAGE_MESA3D_OPENGL_EGL && !BR2_PACKAGE_IMX_GPU_VIV_OUTPUT_WL
 
 config BR2_PACKAGE_WESTON_FBDEV
 	bool "fbdev compositor (deprecated)"