* sysdeps/mips/sys/asm.h: Formatting changes.

* sysdeps/mips/sys/asm.h: Formatting changes.
(PTR, PTRSIZE, PTRLOG): Adjust for all 3 ABIs.
(CPADD): Define for all of them.
(SETUP_GP, SETUP_GPX, SETUP_GPX_L, SAVE_GP, SETUP_GP64,
SETUP_GPX64, SETUP_GPX64_L, RESTORE_GP64, USE_ALT_CP,
NARGSAVE): Define per ABI spec.
(END): Don't redefine.
(LONG_SLL, LONG_SLLV, LONG_SRL, LONG_SRLV, LONG_SRA,
LONG_SRAV): Remove duplicate definitions.
(PTR_ADD, PTR_ADDI, PTR_ADDU, PTR_ADDIU, PTR_SUB, PTR_SUBI,
PTR_SUBU, PTR_SUBIU, PTR_L, PTR_S, PTR_SLL, PTR_SLLV, PTR_SRL,
PTR_SRLV, PTR_SRA, PTR_SRAV, PTR_SCALESHIFT): Define for n32.
(PTR_LA): Define for all 3 ABIs.