Audio VTS:  Fix empty parameter list failures for AudioV6

For AudioV6, OptionalInputBufferSizeTest isn't included in macro
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST.

Bug: 162715033
Test: atest VtsHalAudioV6_0TargetTest

Signed-off-by: Jasmine Cha <chajasmine@google.com>
Change-Id: I526fe166594283540804ee61265c6000de5a89e8
1 file changed