PR22220, BFD linker wrongly marks symbols as PREVAILING_DEF_IRONLY
    
    non_ir_ref_dynamic wasn't being set in the case where we have a
    versioned dynamic symbol definition with a non-versioned matching IR
    symbol.
    
    bfd/
    	PR 22220
    	* elflink.c (_bfd_elf_merge_symbol): Set non_ir_ref_dynamic in
    	a case where plugin_notice isn't called.
    ld/
    	* testsuite/ld-plugin/pr22220.h,
    	* testsuite/ld-plugin/pr22220lib.cc,
    	* testsuite/ld-plugin/pr22220lib.ver,
    	* testsuite/ld-plugin/pr22220main.cc: New test.
    	* testsuite/ld-plugin/lto.exp: Run it.
    
    (cherry picked from commit 1a3b5c34fe371f618402f811a981839c9191ff9f)