installer: try updating cr50 firmware if required

Check if current system uses cr50, and if so - invoke the script which
tries updating cr50 firmware.

BUG=b:35580805
TEST=tested along with CL:459119, observed successful update of cr50
     from 0.0.18 to 0.0.19 when updating target running M57 to M60.

Change-Id: I83c796a9d9c91944331e13b651758c8e449f09fc
Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/493915
Reviewed-by: Mike Frysinger <vapier@chromium.org>
(cherry picked from commit a024439d484a213ee2135ac5adfd1db946d6177c)
Reviewed-on: https://chromium-review.googlesource.com/645411
Reviewed-by: Philip Chen <philipchen@chromium.org>
Commit-Queue: Philip Chen <philipchen@chromium.org>
Tested-by: Philip Chen <philipchen@chromium.org>
1 file changed