[LLD][COFF] Ignore DEBUG_S_XFGHASH_TYPE/VIRTUAL

These are new debug types that ships with the latest
Windows SDK and would warn and finally fail lld-link.

The symbols seems to be related to Microsoft's XFG
which is their version of CFG. We can't handle any of
this yet, so for now we can just ignore these types
so that lld doesn't fail with a new version of Windows
SDK.

Fixes: #56285

Reviewed By: rnk

Differential Revision: https://reviews.llvm.org/D129378