drivers/i2c/tpm/cr50: Clean up timeouts

Use two different timeouts in the driver.  The 2ms timeout is needed
to be safe for cr50 to cover the extended timeout that is seen with
some commands. The other at 2 seconds which is a TPM spec timeout.

BUG=chrome-os-partner:53336

Change-Id: I77fdd7ea646b8b2fef449f07e3a08bcce174fe8b
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
1 file changed