[gnome-shell] build: Update gvc to support renamed options

[Florian Müllner <fmuellner src gnome org>]

commit 6e74f987ec8d63bd1b85b41825aef94f8338558c
Author: Iñigo Martínez <inigomartinez gmail com>
Date:   Tue Jan 30 13:37:38 2018 +0100

    build: Update gvc to support renamed options
    
    gvc has made some recent changes that rename its user options
    following meson guidelines for GNOME packages[0].
    
    The options used in gvc as a subproject have been renamed
    accordingly.
    
    [0] https://wiki.gnome.org/Initiatives/GnomeGoals/MesonPorting

 meson.build     | 6 +++---
 subprojects/gvc | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/meson.build b/meson.build
index 88766b3e4..1eec6aa27 100644
--- a/meson.build
+++ b/meson.build
@@ -167,12 +167,12 @@ conf_inc = include_directories('.')
 
 libgvc = subproject('gvc',
   default_options: [
-    'package-name=' + meson.project_name(),
-    'package-version=' + meson.project_version(),
+    'package_name=' + meson.project_name(),
+    'package_version=' + meson.project_version(),
     'pkgdatadir=' + pkgdatadir,
     'pkglibdir=' + pkglibdir,
     'static=false',
-    'with-introspection=true',
+    'introspection=true',
     'alsa=false'
   ]
 )
diff --git a/subprojects/gvc b/subprojects/gvc
index 67533bffd..6a0ac9ba6 160000
--- a/subprojects/gvc
+++ b/subprojects/gvc
@@ -1 +1 @@
-Subproject commit 67533bffdcd22893b28baa411b2e75bd75dce323
+Subproject commit 6a0ac9ba69f84d763f286c5741b57ff8d87c1f45