hothd: Seed random number generator before generating request IDs

Fixes issue in which the returned response mismatches current
request over USB, but matches a previous request instead.

Tested: Builds and ran ~780 iterations of provisioning flow
Google-Bug-Id: 428756659
Change-Id: Ic3ef6895f96294fbebcdc14d55464aee960532a4
Signed-off-by: Jacqueline Wong <jacqwong@google.com>
2 files changed