ui: fix mixup between qnum and qcode in SDL1 key handling

ui: fix mixup between qnum and qcode in SDL1 key handling

The previous commit:

  commit 2ec78706d188df7d3dab43d07b19b05ef7800a44
  Author: Daniel P. Berrange <[email protected]>
  Date:   Wed Jan 17 16:47:15 2018 +0000

    ui: convert GTK and SDL1 frontends to keycodemapdb

changed the x_keymap.c keymap so that its target was qcodes instead of
qnums. It updated the GTK frontend to take account of this change, but
forgot to update the SDL1 frontend. Thus the SDL frontend was getting
qcodes but dispatching them as if they were qnums. IOW, keyboard input
was completely hosed with SDL1. Since the keyboard layout tables are
still all based on qnums, it is easier to just keep SDL1 using qnums as
it will be deleted in a few releases time.

Reported-by: BALATON Zoltan <[email protected]>
Signed-off-by: Daniel P. Berrangé <[email protected]>
Tested-by: BALATON Zoltan <[email protected]>
Message-id: 20180201180033[email protected]
Signed-off-by: Gerd Hoffmann <[email protected]>