[ELF] - Ignore -Map,-M and --cref options.
[ELF] - Ignore -Map,-M and --cref options.

-M, --print-map Write map file on standard output
-Map MAPFILENAME Write map file
--cref	Output cross reference table

This is relative to PR30973.

Next FreeBSD ports were atm failing because of 
lack of -Map, -M and --cref:

sysutils/openipmi
emulators/adamem
devel/jwasm
net/pimd
devel/k8048
textproc/libcrm114
lang/micropython
net/mrouted
print/openprinting

After this patch all of them can be link fine.

git-svn-id: f6089bf0e6284f307027cef4f64114ee9ebb0424@286831 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/lld,llvm-mirror/lld