vp9_tokenize.c: cleanup -wextra warnings

Change-Id: I85854f1ab2d60feea0bfe6b2141f89a998777ecb
AVX2 To VP9 Block Error Optimization

vp9_block_error_sse2 can only handle 16 bytes at a time but
the function requires to handle a sequence of 32 bytes at a time
so each 16 bytes is handled in a different register.
With AVX2 optimization the 32 bytes can be handled in one register instead
of two in the SSE2
The vp9_block_error was optimized by 85%.
The user level was optimized by 1.2%

Change-Id: Ia8fffe60e61eff7432a5fbd538757894f6c319fd
Build armv7a-only code

Allow disabling the more generic NEON code.
Use filtered option to disable rtcd code.

Change-Id: Icb4500c1a2bac16eed3c5e3ec0c35e92e6bbbb9f
Remove intermediate step in vp8_dequantize_b

With the intrinsics it is no longer necessary to have a stub/helper
function.

Change-Id: I3695961c3c94f1bb750d3b7b29716e509ebba482
Removing unused img_setup field.

Change-Id: I152e54fa1acceea5ec809d5bf7bfa7f4ef2b9acf
Revert "Remove Wextra warnings from vp9_sad.c"

This reverts commit 7ab9a9587b96db4edce6be916c1f02297a9555ff

Nightly test http://build.webmproject.org/jenkins/view/libvpx-nightly-tests/job/libvpx%20unit%20tests%20(valgrind-2)/arch=x86_64-linux-gcc,filter=-*VP8*:*Large.*/276/console

Failed 

This patch did not address all the assembly issues 
some of the vp8 assembly counts on 5 arguments being passed in to this function:   

one example : vp8_sad8x16_wmt

Please address or split this into vp9 and vp8 patches.

Change-Id: I78afcc171649894f887bb8ee3c66de24aaddc7ca
Fix post-processor macros & remove vizualization

Make all post-processor code conditionally
compilable based on the CONFIG_VP9_POSTPROC
macro.

Also, remove the vizualization code from VP9
since it is out of date and will not compile.

Change-Id: I1e9e13a09ecd43e9a3f3704c175ae8cd258ababd
Refactor calling loopfilter code.

This change is mainly for a follow CL that will refactor the
decode_tiles.

Change-Id: I52de6f8dbada75a64d9a94ebb5975136ed0960b4
Merge "Refactor calling loopfilter code."
Removing redundant "8x8" suffix from MODE_INFO vars.

Change-Id: I7ed7fecc959c6598ff98895f1a5cf7e11ac1615f
vp9_rdopt.c: cleanup -wextra warnings

Change-Id: I1f87c689cad2224181d40a7d00f5c1064ceefa4b
vp9_pickmode.c: cleanup -wextra warnings

Change-Id: I07e39f04fb11d2673722651fc78d0e9d22b1f557
vp9_firstpass.c: clean -wextra warnings

Change-Id: Ic488fe6edbc119f475763d72a85809499df60106
Merge "AVX2 To VP9 Block Error Optimization"
Merge "Revert "Remove Wextra warnings from vp9_sad.c""
Merge "Build armv7a-only code"
Merge "vp9_pickmode.c: cleanup -wextra warnings"
Removing redundant decoder_init flag.

Change-Id: Ieee7a7e3c40d6bcc9fa4df8d10ee9620995aa691
Merge "Removing unused img_setup field."
Merge "vp9_firstpass.c: clean -wextra warnings"