Two minor sdl2 fixes.
# gpg: Signature made Tue 16 Sep 2014 07:20:37 BST using RSA key ID
D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-sdl-
20140916-1:
sdl2: keymap fixups
sdl2: drop sdl_zoom.h
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>