LAVA Helper: Extract 'binaries' from tests to platform configs

Binariy names are only related to platforms. There is no need to
set binariy names in each test configs.

Extract 'binaries' to platform configs to avoid redundant codes.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I2eb62076f150452eb9325337a75efdf059daf43b
6 files changed