[Cronet] Exclude spaceship operator<=> from coverage profiliing

clang-r487747c used for mainline build is breaks while trying
to compile the spaceship operator for coverage. This cl
disables that till Mainline updates clang or moves to main.
See b/330508686 for more.

- nit: also updated the build time. See b/332528730

Test: https://android-build.corp.google.com/abtd/run/L78500030002925385
Bug: b/330508686
Change-Id: Ic424ca3f4524068f3d5e191a07e7350768161e7e
4 files changed