edgetpu: sync critical fixes: GSA failure, UAF on mapping

Sync the following CLs from darwinn-2.0:

950f4f74 edgetpu: abrolhos fail firmware run on GSA fails
93cd0c2c edgetpu: fix UAF in edgetpu_device_group_map

Bug: 192641593
Bug: 194942314
Signed-off-by: David Chiang <davidchiang@google.com>
Change-Id: Id4382b28af3deb67ae5cddbc5af8e21f6a9f5cb0