LAVA: Select LAVA configs based on BL2

To avoid images without BL2 triggering LAVA jobs that require BL2 image,
split lava_gen_config_map into lava_gen_config_map_bl2 and
lava_gen_config_map_nobl2. And select corresponding configs based on BL2
setting.

Signed-off-by: Xinyu Zhang <xinyu.zhang@arm.com>
Change-Id: I18a3ceb87532ba11cbc8cf848abd69d6ab73bd41
2 files changed