Apply HWASan to libc-in-recovery.

HWASan is disabled in recovery strictly for code size, not for
correctness. With this change, HWASan binaries and libraries can be
used in recovery.

The real reason is the make build system which has no idea of the big
picture, and makes it hard to disable HWASan in _all_ recovery modules
recursively. A few static libraries have sneaked in.

Bug: 119582521
Test: sideload an OTA onto a hwasan device
Change-Id: I6536cc7bf5bfb37f939b585545a23c2068fbd47f