pi3usb9201: clean up the includes
pi3usb9201: clean up the includes

Remove unnecessary the "tcpm.h" include.
It will help with porting the pi3usb9201 driver to Zephyr.

BRANCH=none
BUG=b:172236680
TEST=make buildall

Signed-off-by: Dawid Niedzwiecki <73bc8c219b84b29e82d4338ec2e55b540c845bc6@semihalf.com>
Change-Id: I446daf8025e35876c5018e041ba515e4ae017b3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2521598
Reviewed-by: Jett Rink <9d4aef0593e6843318d99df31597fb6153b89787@chromium.org>
Reviewed-by: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>
Commit-Queue: Jack Rosenthal <d3f605bef1867f59845d4ce6e4f83b8dc9e4e0ae@chromium.org>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec