Exclude debuggable test config for 660

The optimization for <clinit> is disabled for debuggable build, refered
in c/433381.

Exclude the test variants with debuggable build.

Test: testrunner.py --host --debuggable -t 660
Change-Id: Ic6a5c2d8984816d0fd79cd7828c0389fbddbdc84
1 file changed