weston: Set require-input to false in weston.ini

weston: Set require-input to false in weston.ini

Revert the previous fix for launching Weston 2.0
without input devices and achieve the same result
by setting the directive require-input to false
in the configuration file weston.ini. This is a
new feature which has been introduced in Weston
since version 2.0.

Bug-AGL: SPEC-936

Change-Id: I65ccc0d9942d86420cd801f571ccbefe58812796
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/11301
Reviewed-by: Matt Ranostay <matt.ranostay@konsulko.com>
Reviewed-by: José Bollo <jobol@nonadev.net>
Reviewed-by: Thomas Rini <trini@konsulko.com>
Reviewed-by: Matt Porter <mporter@konsulko.com>
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
Tested-by: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-build: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>
ci-image-boot-test: Jenkins Job builder account <agl-jobbuilder@automotivelinux.org>