[PATCH][AArch64][gas] Add support for Neoverse E1

[Nick Clifton]

Hi Kyrill,

> 2019-02-21  Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
> 
> Â Â Â  * config/tc-aarch64.c (aarch64_cpus): Add neoverse-e1.
> Â Â Â  * doc/c-aarch64.texi (-mcpu): Document neoverse-e1 value.

Approved - please apply.

Cheers
  Nick