seat: don't break in notify_output_create

If more than one input device maps to the new output, then we need
to map all devices to that output... not just the first device.

Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=77576

Signed-off-by: U. Artie Eoff <ullysses.a.eoff@intel.com>
2 files changed