UCM config: glados and chell: Load hotword model blob

Add SectionModifier to load en-us hotword model blob.

BUG=chrome-os-partner:48270
TEST=check "cras_test_client --get_hotword_models 7:0"
    returns "Hotword models: en_us" on DUT.
CQ-DEPEND=CL:*268062

Change-Id: I9fa0efcc3f583d8c451aec14461a569df4f93e40
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/347492
Commit-Ready: Ben Zhang <benzh@chromium.org>
Tested-by: Mac Chiang <mac.chiang@intel.com>
Tested-by: Ben Zhang <benzh@chromium.org>
Reviewed-by: Ben Zhang <benzh@chromium.org>
1 file changed