drivers/intel: Align FSP debug handler with EFI calling convention

Ensures the FSP debug handler adheres to the EFI calling convention,
enabling seamless integration with coreboot infrastructure.

This is critical for 64-bit coreboot and FSP communications.

BUG=b:242829490
TEST=FSP debug logs successfully captured via coreboot event handler.

Change-Id: I9085a6c7d50e58fb56cbbc61da3a0af094d0dc05
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81621
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Dinesh Gehlot <digehlot@google.com>
Reviewed-by: Ronak Kanabar <ronak.kanabar@intel.com>

0 files changed, 0 insertions, 0 deletions