Pass --avoid-storing-invocation to dex2oat

Pass --avoid-storing-invocation to dex2oat, which will remove the
command line from the final .odex files.  This will help make the
.odex files reproducible across devices and build system changes,
simplifying comparisons.

Bug: 119412419
Test: m checkbuild
Change-Id: I46cedadab9a87addc0f9e35f7bbe578beae1df60