[hwasan] Add hwasan-static-linking option (#154529)
Discarding the `.note.hwasan.globals` section in ldscript causes a
linker error, since `hwasan_globals` refers to the discarded section.
The issue comes from `hwasan.dummy.global` being associated via metadata
with `.note.hwasan.globals`.
Add a new `-hwasan-static-linking` option to skip inserting
`.note.hwasan.globals` for static binaries, as it is only needed for
instrumenting globals from dynamic libraries. In static binaries, the
global variables section can be accessed directly via the
`__start_hwasan_globals` and `__stop_hwasan_globals` symbols inserted by
the linker.
