Assert hinge angle sensor outputs >=2 values

Asserting at least 2 values are output by the hinge angle sensor during
the manual verification test allows the test to be more confident that
the manual test is being run properly.

Unfortunately, verifying range % resolution samples are sent isn't
possible as there are combinations of range and resolution that don't
provide exactly that many samples. E.g. range = 180, resolution = 30,
output samples = [0, 60, 90, 120, 180].

Bug: 156237402
Test: Run CtsVerifier in goldfish and verify pass
Change-Id: I9fe1a33c64332d8a51507967d86d5e7855650c00
1 file changed