Restore the realId assignment in AudioLoad_AsyncLoadInner (#7105)

The function declares realId and then indexes with it thirteen times -
the load-status tables, AudioLoad_SearchCaches, the table entry it reads
size and address from, every cache allocation, and the status write at the
end - but nothing assigns it. It has read an uninitialised local since
"Custom Sequences" (#2066) dropped the assignment in 2022.

Restoring the line puts back the value the rest of the function expects.
For SEQUENCE_TABLE and FONT_TABLE, AudioLoad_GetRealTableIndex returns the
id unchanged, so this is only a correctness fix in practice: the paths that
reach this function today go through the sequence script's async load
command, which is rare enough that the garbage index has not been tied to
any report.

0 files changed, 0 insertions, 0 deletions