Don't mask out SA_RESTORER from sa_flags.

glibc doesn't do this, and we probably shouldn't either.

Bug: 16703540
Bug: 17436734

(cherry picked from commit afe58ad9892de27a7acb0aaded6312ee0f958314)

Change-Id: Iada5d0ae814f438cb276f056b2b5e3675f0e3666
2 files changed