deb#899380 apparmor: fix gpg encryption hang trying to lock random_seed

Change-Id: Ib9fb7652922dcc8364567953d17d7cae8ad170a7
Reviewed-on: https://gerrit.libreoffice.org/54726Reviewed-by: Rene Engelhard <rene@debian.org>
Tested-by: Rene Engelhard <rene@debian.org>

sysui/desktop/apparmor/program.soffice.bin

@@ -191,6 +191,7 @@ profile libreoffice-soffice INSTDIR-program/soffice.bin {
    /usr/bin/gpgsm rm,
 
     owner @{HOME}/.gnupg/* r,
+    owner @{HOME}/.gnupg/random_seed rk,
   }
 
   # probably should become a subprofile like gpg above, but then it doesn't