Limit 2 uses of SANITIZE_TARGET to ASan.

These two places are checking for ifdef(SANITIZE_TARGET) but what
they are really looking for is the second stage of ASan build.

Fix the checks so that they do not apply to HWASan.

I have not seen any change in behavior, but there are some new files
under /system in hwasan build that were not there before, and things
keep working in general, so this feels like the right move.

Bug: 112438058
Test: none; SANITIZE_TARGET=hwaddress keeps working
Change-Id: I4544f408263b908be6ef4a47dd2b5c937e0c1f33