[gnome-build-meta/jjardon/gdm_plymouth] elements/core/gdm.bst: Be explicit about enable plymouth

[Javier Jardón Cabezas <jjardon src gnome org>]

commit d8df9e84cc3478494b3f1f82436d6b42dfec3677
Author: Javier Jardón <jjardon gnome org>
Date:   Fri May 1 19:48:13 2020 +0100

    elements/core/gdm.bst: Be explicit about enable plymouth
    
    This was accidentaly removed in
    b55ead67294c0a3b083c0bb439a7922ecf17fa1a

 elements/core/gdm.bst | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/elements/core/gdm.bst b/elements/core/gdm.bst
index fb0ed11e..b857b3ea 100644
--- a/elements/core/gdm.bst
+++ b/elements/core/gdm.bst
@@ -25,6 +25,7 @@ variables:
     -Ddefault-pam-config=none
     -Dlibaudit=disabled
     -Dpam-prefix=%{sysconfdir}
+    -Dplymouth=enabled
     -Drun-dir=/run/gdm
     -Dselinux=disabled
     -Dxdmcp=disabled