support/config-fragments/autobuild: use Bootlin toolchain for x86-64 musl
Instead of using an external toolchain built specifically for the
autobuilders to test x86-64/musl, use a pre-built Bootlin toolchain.
The previous configuration was for an Atom platform, but the Bootlin
toolchains only provide a Core i7 configuration. Since this is close
enough, we change to use this Core i7 configuration.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>