macho/reloc: Fixed in handling GOT/GOTLOAD/TLV relocations
macho/reloc: Fixed in handling GOT/GOTLOAD/TLV relocations

- Changed to search all symbols, instead of only global symbols.

- Will do immediate exits when unsupported use of WRT

- Fixed to mark (got)pcrel flag only for macho64 output. GOT is
supported only for 64-bit.

Based-on-code-from: zenith432 <34af7ae747ebe653036517897481b0763d276599@users.sourceforge.net>
Signed-off-by: Chang S. Bae <5225702d5f350302bceb6664e109365ef85e2e11@gmail.com>

techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm,techkey/nasm