xbmc: add host-gettext dependency

xbmc: add host-gettext dependency

AUTOPOINT=/bin/true does not work anymore since
https://github.com/xbmc/xbmc/commit/42017cba7a62a0cf16896b061a25a25d392e1e46

config.status: error: cannot find input file: `Makefile.in'
configure: error: Submodule lib/cpluff failed to configure

This will be needed for 13.0 Gotham.

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Tested-by: "Maxime Hadjinlian" <maxime.hadjinlian@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>