Switch CT android builds to use "symbol_level=1"
Switch CT android builds to use "symbol_level=1"

Context is in: https://bugs.chromium.org/p/skia/issues/detail?id=5762#c7

BUG=skia:5762

Change-Id: I74f387fb71e4b1ea6cffb3f1ee59f72d4d3dd4d5
Reviewed-on: https://skia-review.googlesource.com/2471
Commit-Queue: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>
Reviewed-by: Ravi Mistry <9fa2e7438b8cb730f96b74865492597170561628@google.com>

google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot,google/skia-buildbot