Adding SPMI tree to linux-next

[Nícolas F. R. A. Prado]

Hi Stephen,

I've noticed your spmi-next [1] branch is not currently tracked by linux-next
[2]. Could you please consider adding it?

There's a machine (MT8195 Tomato Chromebook) that relies on a fix from that
branch to reliably boot, and since the machine is hooked up to KernelCI to run
tests on top of linux-next, having the fix integrated into next would make the
test results more useful, the machine's current upstream support easily
verifiable and regressions detectable.

Thanks,
Nícolas

[1] https://git.kernel.org/pub/scm/linux/kernel/git/sboyd/spmi.git/log/?h=spmi-next
[2] https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/diff/Next/Trees