Allow serial numbers beginning with EM

Newer em100s have serial numbers beginning with EM instead of DP.

Signed-off-by: Chris Koch <chrisko@google.com>
Change-Id: I6f4b3b0900fe1b5c776acd02f54ca97b31d85420
Reviewed-on: https://review.coreboot.org/c/em100/+/37624
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Ryan O'Leary <ryanoleary@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
1 file changed