OMAPDSS: DSI: count with number of lanes

DSI driver currently counts used lanes and number of supported lanes by
using the number of data lanes (i.e. excluding clock lane). This patch
changes this to use the number of all lanes so that the following lane
config patches are cleaner.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

Conflicts:
	drivers/video/omap2/dss/dsi.c

Change-Id: I4488f13fb429936e2c7f48ea5aaa70fa119bb9db
1 file changed