[V8] Implement remaining SIMD operations on ARM.

[V8] Implement remaining SIMD operations on ARM.

- Combines ARM Select instructions into a single instruction.
- Renames machine operators to match renamed SIMD bool vector machine types.
- Implements Boolean vector logical ops, AND, OR, XOR, NOT for ARM.
- Implements AnyTrue, AllTrue ops for ARM.
- Eliminates unused SIMD op categories in opcodes.h.

LOG=N
BUG=v8:4124

[bbudge, 2017-03-31 00:25:46]

Description was changed from

==========
[V8] Implement remaining SIMD operations on ARM.

- Combines ARM Select instructions into a single instruction.
- Renames machine operators to match renamed SIMD bool vector machine types.
- Implements Boolean vector logical ops, AND, OR, XOR, NOT for ARM.
- Implements AnyTrue, AllTrue ops for ARM.
- Eliminates unused SIMD op categories in opcodes.h.

LOG=N
BUG=v8:4124
==========

to

==========
[V8] Implement remaining SIMD operations on ARM.

- Combines ARM Select instructions into a single instruction.
- Renames machine operators to match renamed SIMD bool vector machine types.
- Implements Boolean vector logical ops, AND, OR, XOR, NOT for ARM.
- Implements AnyTrue, AllTrue ops for ARM.
- Eliminates unused SIMD op categories in opcodes.h.

LOG=N
BUG=v8:4124
==========