intel/fsp: Update cannonlake FSP header

Update cannonlake FSP header file to revision 7.x.15.46. The following
item had been updated:
1. Remove/Hide restricted structure.
2. Add EBR as extention of RMT features.
3. Add cpu wakeup timer UPD.
4. Remove XHCI access lock UPD.

TEST=NONE

Change-Id: I065edbeffdaf555ea7d54ec3fdce56d026789c52
Signed-off-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-on: https://review.coreboot.org/22052
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2 files changed