drivers/i2c/tpm/cr50: Reduce max buffer size

Reduce the static buffer size from the generic default 1260
down to 64 to match the max FIFO size for the cr50 hardware
and reduce the footprint of the driver.

BUG=chrome-os-partner:53336

Change-Id: Ia88facca607f3fd5072d0d986323fde075f15855
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
1 file changed