Baruch Siach authored Apr 03, 2018 and Guillem Jover committed Apr 04, 2018

uClibc defines EM_OR1K instead of EM_OPENRISC for the OpenRISC ELF
e_machine ID. Use EM_OR1K when EM_OPENRISC is not defined.

This fixes the following build failure:

In file included from nlist.c:44:0:
nlist.c: In function ‘__elf_is_okay__’:
local-elf.h:224:23: error: ‘EM_OPENRISC’ undeclared (first use in this function)
 #define ELF_TARG_MACH EM_OPENRISC
                       ^
nlist.c:77:26: note: in expansion of macro ‘ELF_TARG_MACH’
   if (ehdr->e_machine == ELF_TARG_MACH &&
                          ^

Signed-off-by: Guillem Jover <guillem@hadrons.org>