phy: intel: Fix a typo

s/subsytem/subsystem/

Signed-off-by: Bhaskar Chowdhury <unixbhaskar@gmail.com>
Link: https://lore.kernel.org/r/20210320204055.26107-1-unixbhaskar@gmail.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>