mesa3d: Fix gbm related compile error

https://bugs.freedesktop.org/show_bug.cgi?id=78225#c1
"AFAICS both gbm backends require DRI"

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/mesa3d/mesa3d.mk

@@ -69,7 +69,6 @@ endif
 
 ifeq ($(MESA3D_DRI_DRIVERS-y),)
 MESA3D_CONF_OPT += \
-	--disable-dri \
 	--without-dri-drivers
 else
 MESA3D_CONF_OPT += \
@@ -102,7 +101,6 @@ MESA3D_CONF_OPT += \
 	--with-egl-platforms=$(subst $(space),$(comma),$(MESA3D_EGL_PLATFORMS))
 else
 MESA3D_CONF_OPT += \
-	--disable-gbm \
 	--disable-egl
 endif