demos/intel_sprite_on: Fix connector iteration bug

Instead of looping until the first disconnected port is found,
now go through all possible connectors, drawing the sprite on
any connected display.

v2: Print a message if we don't find any valid connectors.

Signed-off-by: Jim Bride <jim.bride@linux.intel.com>
Signed-off-by: Marius Vlad <marius.c.vlad@intel.com>
1 file changed