firmware: stratix10-svc: fix make htmldocs warning for stratix10_svc

firmware: stratix10-svc: fix make htmldocs warning for stratix10_svc

[ Upstream commit 377441d53a2df61b105e823b335010cd4f1a6e56 ]

Fix this warning that was generated from "make htmldocs":

WARNING: drivers/firmware/stratix10-svc.c:58 struct member 'intel_svc_fcs'
not described in 'stratix10_svc'

Fixes: e6281c26674e ("firmware: stratix10-svc: Add support for FCS")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Closes: https://lore.kernel.org/linux-next/20251106145941.37920e97@canb.auug.org.au/
Signed-off-by: Dinh Nguyen <dinguyen@kernel.org>
Link: https://patch.msgid.link/20251114185815.358423-1-dinguyen@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>