Correct the format.

Change-Id: I59a53b419adda3a609d50b2a82f5a4a54849752e
Add a 32-bit friendly sse2 quantizer.

This is based on the 64-bit ssse3 quantizer.

1.1x speedup for screen content at speed 7.

Change-Id: I57d15415ef97c49165954bbe3daaaf9318e37448
Remove an unneeded function call

set_tile_limits() is called in vp9_change_config() already.

Change-Id: I91c3a0df2c1c7fd7e71546d8f51fd5b65838a7da
Merge "Correct the format."
Merge "Remove an unneeded function call"
Merge "Add a 32-bit friendly sse2 quantizer."