[gnome-boxes] build: Install appstream metadata to non-deprecated location

[Felipe Borges <felipeborges src gnome org>]

commit 13e39f6d28f0a772b2f3a9de86787b7504fd67ba
Author: Debarshi Ray <debarshir gnome org>
Date:   Thu Dec 7 15:27:58 2017 +0100

    build: Install appstream metadata to non-deprecated location
    
    This is the Autotools version of commit 9f654a2a5b2f4c59.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=790084

 data/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index e035862..b309432 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -14,7 +14,7 @@ all-local: $(desktop_DATA)
 gsettings_SCHEMAS = org.gnome.boxes.gschema.xml
 @GSETTINGS_RULES@
 
-appdatadir = $(datadir)/appdata
+appdatadir = $(datadir)/metainfo
 appdata_in_file = org.gnome.Boxes.appdata.xml.in
 appdata_DATA = $(appdata_in_file:.xml.in=.xml)