[ELF] Ignore --no-add-needed

It is used by a few projects like keepassxc and mumble.
Also see https://bugzilla.redhat.com/show_bug.cgi?id=2070813 that Fedora gcc has
an (unneeded) gcc12-no-add-needed.patch which adds --no-add-needed, although
--[no-]add-needed has been deprecated in GNU ld since 2009. Adding this has low
costs and makes several folks happy.

This basically restores 8f13bef.

Fixes #54756

(cherry picked from commit c29c19c)

Author: MaskRay

lld/ELF/Options.td

@@ -695,6 +695,7 @@ def plugin_opt_eq : J<"plugin-opt=">;
 def: F<"detect-odr-violations">;
 def: Flag<["-"], "g">;
 def: F<"long-plt">;
+def: FF<"no-add-needed">;
 def: F<"no-copy-dt-needed-entries">;
 def: F<"no-ctors-in-init-array">;
 def: F<"no-keep-memory">;

lld/test/ELF/silent-ignore.test

@@ -2,6 +2,7 @@ RUN: ld.lld --version \
 RUN:   -detect-odr-violations \
 RUN:   -g \
 RUN:   -long-plt \
+RUN:   --no-add-needed \
 RUN:   -no-copy-dt-needed-entries \
 RUN:   -no-ctors-in-init-array \
 RUN:   -no-keep-memory \