[AArch64][binutils] Add support for ARMv8.1 Virtulization Host Extensions

[Jan Beulich]

>>> Matthew Wahab <matthew.wahab@foss.arm.com> 11/09/15 1:50 PM >>>
>+    rw_sys_reg spsr_el2 x7
>+    rw_sys_reg elr_el2 x7

Did you mean _el12 in both cases?

Also did you intentionally leave out tests for the newly added ttbr1_el2,
contextidr_el2, cnthv_tval_el2, cnthv_ctl_el2, and cnthv_cval_el2?

+  /* Virtualization host extensions: *_el12 names of *_el0 registers.  */

Shouldn't this say _el02?

Jan