[PATCH: Bug debug/39527] wrong function name and line numbers with -g -O2 option

[M R Swami Reddy]

Patch to fix the PR 39527 for crx-elf target.
Ran the PR testcase and its working as expected and also ran the binutils tests. 
No regressions.

Is this ok gcc trunk?

gcc/ChangeLog

        PR debug/39527
        * config/crx/crx.c (DWARF2_FRAME_INFO, PREFERRED_DEBUGGING_TYPE and
          DWARF2_ASM_LINE_DEBUG_INFO): Define

bfd/ChangeLog

        * elf32-crx.c (crx_elf_howto_table): Zero the src_mask field of
        the reloc descriptions.


Thanks
Swami
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