Merge "riscv64: assume fast unaligned access." into main am: 3fb5c15a am:...

Merge "riscv64: assume fast unaligned access." into main am: 3fb5c15a am: 6014bf35 am: 67c1b30e am: f905341c

Original change: https://android-review.googlesource.com/c/platform/build/soong/+/2734373



Change-Id: I63f90cb4879b23b7b52d47502740015cb582d632
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>