[gnome-shell/wip/fmuellner/volume-change-feedback: 5/6] gvc: Update submodule

[Florian Müllner <fmuellner src gnome org>]

commit c506eda20aecccc69436418c777bfa4adedecd88
Author: Florian Müllner <fmuellner gnome org>
Date:   Fri Nov 22 18:37:25 2019 +0100

    gvc: Update submodule
    
    gnome-volume-control now has API to expose the stream state, which
    we will need in the following commit.
    
    https://gitlab.gnome.org/GNOME/gnome-shell/issues/53

 subprojects/gvc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/subprojects/gvc b/subprojects/gvc
index 0e1b4bdafc..ec5cf3e0de 160000
--- a/subprojects/gvc
+++ b/subprojects/gvc
@@ -1 +1 @@
-Subproject commit 0e1b4bdafc364d5b62ffd14847e9e6ecfefbf2c9
+Subproject commit ec5cf3e0de6715803e64b65abb059e2155b3d6de