MTD search commands: show & find

BUG=chromium:221745
TEST=MTD version of run_cgpt_tests.sh passes
BRANCH=none

Change-Id: I8a5c1afab238eb10f38d865405ea2828715685d8
Original-Change-Id: I3d72fecbb3ef95252aa35d56885288340537b1c5
Reviewed-on: https://gerrit.chromium.org/gerrit/47175
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Albert Chaulk <achaulk@chromium.org>
Tested-by: Albert Chaulk <achaulk@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/49794
Reviewed-by: Albert Chaulk <achaulk@chromium.org>
2 files changed