Re-enable [[clang::musttail]] on 64-bit Android.

Our issues with [[clang::musttail]] on Android appear to be
similar to b/241922611, which only affects arm-v7 (32-bit).
Rather than disabling [[clang::musttail]] for all Android
devices, we can scope the mitigation to 32-bit ARM instead.
(Unfortunately, this still leaves Chrome on Android
impacted until go/64bit-clank lands.)

Unfortunately, there isn't a Chromium Canary option here, but
if this doesn't work as expected, it will prevent skcms from
rolling; if this occurs we can just roll this CL back.

Bug: chromium:1504548
Bug: chromium:1504823
Bug: chromium:1504816
Change-Id: Iaf21319cb21fd9e56ce220c3e96491103ddb474a
Reviewed-on: https://skia-review.googlesource.com/c/skcms/+/785177
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
1 file changed