In contrib/binutils/bfd/elf32-ppc.c, avoid warnings about case values
not being in the enumerated type 'enum elf_ppc_reloc_type', by casting
the switch argument to int.

MFC after:	3 days


git-svn-id: svn+ssh://svn.freebsd.org/base/head@276352 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f