fix for gcc 4.4 build

Avoid gcc 4.4 indexing a vector_size(32) array error.

Mking color conversion use simple arrays within structure, which will be referenced via register pointer.

R=harryjin@google.com
BUG=libyuv:616
TEST=CC=gcc-4.4 CXX=g++-4.4 LD=ld-4.4 make -f linux.mk

Committed: https://chromium.googlesource.com/libyuv/libyuv/+/303b9f03c826296fcacf4678d8a2ed708a918044

[harryjin, 2016-07-06 22:05:17]

lgtm

[fbarchard1, 2016-07-06 22:05:24]

Description was changed from

==========
fix for gcc 4.4 build

R=harryjin@google.com
BUG=libyuv:616
==========

to

==========
Avoid gcc 4.4 indexing a vector_size(32) array error.

Mking color conversion use simple arrays within structure, which will be
referenced via register pointer.

R=harryjin@google.com
BUG=libyuv:616
TEST=CC=gcc-4.4 CXX=g++-4.4 LD=ld-4.4 make -f linux.mk
==========

[fbarchard1, 2016-07-06 22:14:32]

Description was changed from

==========
Avoid gcc 4.4 indexing a vector_size(32) array error.

Mking color conversion use simple arrays within structure, which will be
referenced via register pointer.

R=harryjin@google.com
BUG=libyuv:616
TEST=CC=gcc-4.4 CXX=g++-4.4 LD=ld-4.4 make -f linux.mk
==========

to

==========
Avoid gcc 4.4 indexing a vector_size(32) array error.

Mking color conversion use simple arrays within structure, which will be
referenced via register pointer.

R=harryjin@google.com
BUG=libyuv:616
TEST=CC=gcc-4.4 CXX=g++-4.4 LD=ld-4.4 make -f linux.mk

Committed:
https://chromium.googlesource.com/libyuv/libyuv/+/303b9f03c826296fcacf4678d8a...
==========

[fbarchard1, 2016-07-06 22:14:33]

Committed patchset #1 (id:1) manually as
303b9f03c826296fcacf4678d8a2ed708a918044 (presubmit successful).