[gnome-settings-daemon/wip/inigomartinez/meson: 5/6] build: Rebase recent libgnome-volume-control

[Iñigo Martínez <inigomartinez src gnome org>]

commit 12e7cf2034e5ef57d65b67d7805519069aada6ab
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Sat Feb 3 10:48:27 2018 +0100

    build: Rebase recent libgnome-volume-control
    
    Recent changes in libgnome-volume-control include some fixes and
    a number of build improvements. However, none of them make a major
    change that could affect gnome-settings-daemon, so these are nice
    to have improvements.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=793087

 subprojects/gvc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/subprojects/gvc b/subprojects/gvc
index 01e1fde..6a0ac9b 160000
--- a/subprojects/gvc
+++ b/subprojects/gvc
@@ -1 +1 @@
-Subproject commit 01e1fde6e5cc416d4fe7b1d8a7afb97455210e3a
+Subproject commit 6a0ac9ba69f84d763f286c5741b57ff8d87c1f45