[LLDB] Remove leftovers and typos from RegisterInfos_arm64_sve.h

This patch removes a couple of left-overs and a typo from
RegisterInfos_arm64_sve.h and RegisterInfoPOSIX_arm64.h.

GitOrigin-RevId: b45020cf63f6f3a1de0f8d2b8be3c527f6cbdfd5
2 files changed