[backport][2.25][aarch64]Don't create new frag for .inst directive when certain conditions fullfil

[Marcus Shawcroft]

On 6 May 2015 at 14:49, Renlin Li <renlin.li@arm.com> wrote:
> Hi all,
>
> This is a backport patch from the trunk introduced here:
> https://sourceware.org/ml/binutils/2015-03/msg00389.html
>
> After the change, new frag is created for .inst directive, only during state
> transition in executable section. The same rule applies when handling normal
> instructions.
>
> binutils, gas, ld regresstion test Okay.
> Okay to commit?
>
> Regards,
> Renlin Li
>
> Backport from mainline
>
> 2015-05-06  Renlin Li  <renlin.li@arm.com>
>
> gas/ChangeLog
>   * config/tc-aarch64.c (s_aarch64_inst): Align frag during state transition
>   within executable section.
>   (md_assemble): Likewise.

OK /Marcus