kbd: add brazil kbd keys to qemu

The brazilian computer keyboard layout has two extra keys (compared to
the usual 105-key intl ps/2 keyboard).  This patch makes these two keys
known to qemu.

For historic reasons qemu has two ways to specify a key:  A QKeyCode
(name-based) or a number (ps/2 scancode based).  Therefore we have to
update multiple places to make new keys known to qemu:

  (1) The QKeyCode definition in qapi-schema.json
  (2) The QKeyCode <-> number mapping table in ui/input-keymap.c

This patch does just that.  With this patch applied you can send those
two keys to the guest using the send-key monitor command.

Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>

qapi-schema.json

@@ -2784,6 +2784,7 @@
 # Since: 1.3.0
 #
 # 'unmapped' and 'pause' since 2.0
+# 'ro' and 'kp_comma' since 2.4
 ##
 { 'enum': 'QKeyCode',
   'data': [ 'unmapped',
@@ -2801,7 +2802,8 @@
             'kp_9', 'less', 'f11', 'f12', 'print', 'home', 'pgup', 'pgdn', 'end',
             'left', 'up', 'down', 'right', 'insert', 'delete', 'stop', 'again',
             'props', 'undo', 'front', 'copy', 'open', 'paste', 'find', 'cut',
-             'lf', 'help', 'meta_l', 'meta_r', 'compose', 'pause' ] }
+            'lf', 'help', 'meta_l', 'meta_r', 'compose', 'pause', 'ro',
+            'kp_comma' ] }
 
 ##
 # @KeyValue

ui/input-keymap.c

@@ -128,6 +128,10 @@ static const int qcode_to_number[] = {
 
     [Q_KEY_CODE_INSERT] = 0xd2,
     [Q_KEY_CODE_DELETE] = 0xd3,
+
+    [Q_KEY_CODE_RO] = 0x73,
+    [Q_KEY_CODE_KP_COMMA] = 0x7e,
+
     [Q_KEY_CODE_MAX] = 0,
 };