Revert "uart(4): add Sunrise Point UART controllers"

This reverts commit d1b6271118188dd25a18f2372ab1d3004335ea3c.

I've received multiple reports of machines failing to boot with
this hardware; back it out for now until we can fix it.

PR: 271147

(cherry picked from commit 20d8d9809a8c0a3ddd1d0156e77ec53a1ed95747)