hardware_probe: Always use lower case for device ID

Device ID from a DUT is returned in lower case. Change the mapping to lower case as well.

BUG=b:232574099
TEST=build

Change-Id: I2e896ce59b149c78880897f841904275c199a1d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/graphics/+/3696073
Commit-Queue: Ilja Friedel <ihf@chromium.org>
Commit-Queue: Po-Hsien Wang <pwang@chromium.org>
Tested-by: Po-Hsien Wang <pwang@chromium.org>
Reviewed-by: Ilja Friedel <ihf@chromium.org>
Auto-Submit: Po-Hsien Wang <pwang@chromium.org>
3 files changed