Merge patch "RISC-V: Fix unannoted hardirqs-on in return to userspace slow-path"

I'm merging this in as a single patch to make it easier to handle the
backports.

* b4-shazam-merge:
  RISC-V: Fix unannoted hardirqs-on in return to userspace slow-path

Link: https://lore.kernel.org/r/20221111223108.1976562-1-abrestic@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>