Adds support for following CPUs to the ARM and Aarch64 assemblers: Cortex-A77, Cortex...

Adds support for following CPUs to the ARM and Aarch64 assemblers: Cortex-A77, Cortex-A76AE, Cortex-A34, Cortex-A65, and Cortex-A65AE.

Related specifications can be found at
https://developer.arm.com/ip-products/processors.

gas	* NEWS: Mention the Arm and AArch64 new processors.
	* config/tc-aarch64.c: New entries for Cortex-A34, Cortex-A65,
	Cortex-A77, cortex-A65AE, and Cortex-A76AE.
	* doc/c-aarch64.texi: Document new CPUs.
	* testsuite/gas/aarch64/cpu-cortex-a34.d: New test.
	* testsuite/gas/aarch64/cpu-cortex-a65.d: New test.
	* testsuite/gas/aarch64/cpu-cortex-a65ae.d: New test.
	* testsuite/gas/aarch64/cpu-cortex-a76ae.d: New test.
	* testsuite/gas/aarch64/cpu-cortex-a77.d: New test.
	* testsuite/gas/aarch64/nop-asm.s: New test.

bfd	* cpu-aarch64.c: New entries for Cortex-A34, Cortex-A65,
	 Cortex-A77, cortex-A65AE, and Cortex-A76AE.