[RISCV] Add isel patterns for SBCLRI/SBSETI/SBINVI(W) instruction

We can use these instructions for single bit immediates that are too large for ANDI/ORI/CLRI.

The _10 test cases are to make sure that we still use ANDI/ORI/CLRI for small immediates.

Differential Revision: https://reviews.llvm.org/D92262