[PATCH][AArch64] Fix elf_greg_t on ILP32

[Szabolcs Nagy]

On 23/08/17 18:21, Szabolcs Nagy wrote:
> Use uint64_t instead of unsigned long.
> 
> will commit it tomorrow if there are no objections.
> 
> ChangleLog:
> 2017-08-23  Szabolcs Nagy  <szabolcs.nagy@arm.com>
> 
> 	* sysdeps/unix/sysv/linux/aarch64/sys/procfs.h (elf_greg_t):
> 	Use uint64_t instead of unsigned long.
> 

hm sys/procfs.h is included into signal.h
via sys/ucontext.h, where stdint.h should
not be exposed..

this does not happen in standards conforming
mode, but happens with _DEFAULT_SOURCE==1 so
it may cause problems.

i'm not sure if this is ok or better use
unsigned long long instead of uint64_t
(preferred uint64_t to avoid changing the
type on lp64)