Update URLs to what they actually redirect to.

Cc: Quentin Schulz <foss+yocto@0leil.net>
(From OE-Core rev: ec2131070cae6c3933e5b08986e8245fcd9deb99)

Signed-off-by: Quentin Schulz <quentin.schulz@theobroma-systems.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>