Update fsp submodule to upstream master branch

Updating from commit id a72794810884 (2023-09-07):
  IoT ADL-N MR1 (4172_00)

to commit id 481ea7cf0bae (2023-09-19):
  Move to RaptorLakeFspBinPkg.dec

This brings in 9 new commits:
481ea7cf0b Move to RaptorLakeFspBinPkg.dec
55e25b819e Raptor Lake FSP C.1.BD.40
2b0aac4f64 Raptor Lake FSP C.0.BD.40
3fa75657aa Add Client Raptor Lake FSP
8d24189361 Add Alder Lake and Raptor Lake to README.md
98f4a1fe2f Rename to AlderlakeSiliconPkg
c78a6784cb Add FvLateSilicon for Alder Lake
849ce8261b Tiger Lake FSP A.0.7E.70
4b0b1eb4e3 Update SplitFspBin.py to latest from edk2

Change-Id: I8a724bf0a03cba5a9689894e1aec0a81a5bf2c94
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78189
Reviewed-by: Felix Singer <service+coreboot-gerrit@felixsinger.de>
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Żygowski <michal.zygowski@3mdeb.com>

1 files changed, 0 insertions, 0 deletions

diff --git a/3rdparty/fsp b/3rdparty/fsp
-Subproject a72794810884966001c927a5f202a46eb516148
+Subproject 481ea7cf0bae0107c3e14aa746e52657647142f