meson: split and simplify dependencies

Rather than group dependencies in complex groups, use a flatter
structure with split dependencies to avoid checking for the same
dependencies twice.

v2: - Fix building vulkan drivers without gallium or dri drivers
v3: - Drop TODO comment that is done
    - Fix typo in commit message

Signed-off-by: Dylan Baker <dylanx.c.baker@intel.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

src/loader/meson.build

@@ -26,7 +26,10 @@ if with_platform_x11 and with_dri3
     ['loader_dri3_helper.c', 'loader_dri3_helper.h'],
     c_args : c_vis_args,
     include_directories : inc_include,
-    dependencies : [dep_xcb_dri3, dep_libdrm],
+    dependencies : [
+      dep_xshmfence, dep_xcb_present, dep_xcb_dri3, dep_xcb_sync, dep_x11_xcb,
+      dep_xext, dep_xdamage, dep_xcb_glx, dep_libdrm,
+    ],
     build_by_default : false,
   )
 else