gnome-mime-data: Fix meta data

Signed-off-by: Zhai Edwin <edwin.zhai@intel.com>

meta/packages/gnome/gnome-mime-data_2.18.0.bb

@@ -1,7 +1,14 @@
-LICENSE = "GPL"
+DESCRIPTION = "Base MIME and Application database for GNOME"
+HOMEPAGE = "http://www.gnome.org/"
+BUGTRACKER = "https://bugzilla.gnome.org/"
+
+LICENSE = "GPLv2 & GPLv2+"
+LIC_FILES_CHKSUM = "file://COPYING;md5=59530bdf33659b29e73d4adb9f9f6552 \
+                    file://check-mime.pl;endline=26;md5=a95b63c92c33d4ca1af61a315888f450"
+
 inherit gnome
 inherit autotools
-PR = "r2"
+PR = "r3"
 
 SRC_URI += "file://pkgconfig.patch;patch=1"