Merge "Relocate memory operations for common code"

test/dct16x16_test.cc

test/dct32x32_test.cc

test/fdct4x4_test.cc

test/fdct8x8_test.cc

test/sad_test.cc

test/variance_test.cc

vp9/common/arm/neon/vp9_idct16x16_1_add_neon.c

vp9/common/arm/neon/vp9_idct32x32_1_add_neon.c

vp9/common/arm/neon/vp9_idct4x4_1_add_neon.c

vp9/common/arm/neon/vp9_idct8x8_1_add_neon.c

vp9/common/mips/dspr2/vp9_itrans16_dspr2.c

vp9/common/mips/dspr2/vp9_itrans32_cols_dspr2.c

vp9/common/mips/dspr2/vp9_itrans4_dspr2.c

vp9/common/mips/dspr2/vp9_itrans8_dspr2.c

vp9/common/mips/dspr2/vp9_loopfilter_filters_dspr2.h

vp9/common/vp9_common.h

vp9/common/vp9_idct.c

vp9/common/vp9_idct.h

vp9/common/vp9_loopfilter.c

vp9/common/vp9_loopfilter_filters.c