AArch64: Update relocations for ILP32

The latest version of the binutils ELF header defines a new set of
dynamic relocations for ILP32 and renames some to make the naming
more uniform.

ChangeLog:

2014-11-21  Will Newton  <will.newton@linaro.org>
	    Andrew Pinski  <andrew.pinski@caviumnetworks.com>

	* elf/elf.h (R_AARCH64_P32_ABS32, R_AARCH64_P32_COPY,
	R_AARCH64_P32_GLOB_DAT, R_AARCH64_P32_JUMP_SLOT,
	R_AARCH64_P32_RELATIVE, R_AARCH64_P32_TLS_DTPMOD,
	R_AARCH64_P32_TLS_DTPREL, R_AARCH64_P32_TLS_TPREL,
	R_AARCH64_P32_TLSDESC, R_AARCH64_P32_IRELATIVE): Define.
	(R_AARCH64_TLS_DTPMOD64): Rename to ..
	(R_AARCH64_TLS_DTPMOD): This.
	(R_AARCH64_TLS_DTPREL64): Rename to ...
	(R_AARCH64_TLS_DTPREL): This.
	(R_AARCH64_TLS_TPREL64): Rename to ...
	(R_AARCH64_TLS_TPREL): This.
	* sysdeps/aarch64/dl-machine.h (elf_machine_type_class): Update
	R_AARCH64_TLS_DTPMOD64, R_AARCH64_TLS_DTPREL64, and
	R_AARCH64_TLS_TPREL64.
	(elf_machine_rela): Likewise.