[Aarch64][gas][2.25] Backport fix for minimum code section alignment

[Tristan Gingold]

> On 03 Jun 2015, at 12:38, Matthew Wahab <matthew.wahab@arm.com> wrote:
> 
> Hello,
> 
> This patch backports to binutils-2.25 the fix for failing to set a minimum
> alignment for code-sections.
> 
> The trunk change is here:
>  https://sourceware.org/ml/binutils/2015-03/msg00039.html
> The commit log is here:
>  https://sourceware.org/ml/binutils-cvs/2015-03/msg00054.html
> 
> Tested aarch64-none-linux-gnu with check-binutils and check-gas.
> 
> Ok for the branch?

yes, this is ok.

> Matthew
> 
> gas/
> 2015-06-03  Matthew Wahab  <matthew.wahab@arm.com>
> 
> 	* config/tc-aarch64.c (mapping_state): Set minimum alignment for
> 	code sections.
> 
> 
> gas/testsuite
> 2015-06-03  Matthew Wahab  <matthew.wahab@arm.com>
> 
> 	* gas/aarch64/codealign.d: Add test for code section alignment.
> 	* gas/aarch64/codealign.s: New file.
> <codealign_2_25.patch>