Update AArch32 VIXL intrinsics w.r.t. the new art::ReadBarrier API.

Update with respect to changes introduced by commit
12b58b23de974232e991c650405f929f8b0dcc9f.

Test: ART_USE_READ_BARRIER=true make
Change-Id: Iaefd664172ff19cce17cf4d3b2064dba86170c22
1 file changed