UCM config: glados and chell: Add hotword blobs for multiple languages

Add SectionModifier to load hotword model blob for
multiple languages.

BUG=chrome-os-partner:48270
TEST=WoV works with multiple languages
cras_test_client --set_hotword_model 7:0:en_us
cras_test_client --set_hotword_model 7:0:en_gb

CQ-DEPEND=CL:358173

Change-Id: Ic701723dc6e6b33b88fe46a26f266795a208d643
Signed-off-by: Ben Zhang <benzh@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/359915
Commit-Ready: Dan Shi <dshi@google.com>
Tested-by: Casey G Bowman <casey.g.bowman@intel.com>
Reviewed-by: Dylan Reid <dgreid@chromium.org>
1 file changed