[ghex] appdata: Add provides for previously used appstream IDs

[Kalev Lember <klember src gnome org>]

commit 25db1c6a5e7e32be3182a8641895052f0e81c0ea
Author: Kalev Lember <klember redhat com>
Date:   Fri Jul 12 14:20:31 2019 +0300

    appdata: Add provides for previously used appstream IDs
    
    We used "ghex.desktop" upstream, and flathub used "org.gnome.ghex".

 data/org.gnome.GHex.appdata.xml.in | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/data/org.gnome.GHex.appdata.xml.in b/data/org.gnome.GHex.appdata.xml.in
index d61a786..8e58086 100644
--- a/data/org.gnome.GHex.appdata.xml.in
+++ b/data/org.gnome.GHex.appdata.xml.in
@@ -28,6 +28,8 @@
   </kudos>
   <provides>
     <binary>ghex</binary>
+    <id>ghex.desktop</id>
+    <id>org.gnome.ghex</id>
   </provides>
   <releases>
     <release version="3.18.3" date="2016-10-12"/>