qapi: fix examples: replay-break and replay-seek

Both examples outputs are using @data member for the arguments. This
is wrong. The expected member for the QMP is @arguments. Fix it.

Signed-off-by: Victor Toso <victortoso@redhat.com>
Message-Id: <20220331190633.121077-3-victortoso@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>

qapi/replay.json

@@ -81,7 +81,7 @@
 #
 # Example:
 #
-# -> { "execute": "replay-break", "data": { "icount": 220414 } }
+# -> { "execute": "replay-break", "arguments": { "icount": 220414 } }
 #
 ##
 { 'command': 'replay-break', 'data': { 'icount': 'int' } }
@@ -117,6 +117,6 @@
 #
 # Example:
 #
-# -> { "execute": "replay-seek", "data": { "icount": 220414 } }
+# -> { "execute": "replay-seek", "arguments": { "icount": 220414 } }
 ##
 { 'command': 'replay-seek', 'data': { 'icount': 'int' } }