Make inlined CAS32 loop until store is successful if values match.

The native implementation of compareAndSwap uses android_atomic_cas,
which will repeat the strex until it succeeds. The compiled version
was changed to do the same.

Bug: 10530407
Change-Id: I7efb3f92d0d0610fcc5a885e2c97f1d701b5a4ea
(cherry picked from commit 2de2aa1a)