Turn on SIMD hbd convolve implementation
Turn on SIMD hbd convolve implementation

Change-Id: I2e3315209559320bbae0ab7e88c9ee5df9e53ef8

luctrudeau/aom,luctrudeau/aom,GrokImageCompression/aom,smarter/aom,luctrudeau/aom,smarter/aom,luctrudeau/aom,GrokImageCompression/aom,GrokImageCompression/aom,smarter/aom,smarter/aom,GrokImageCompression/aom,smarter/aom,luctrudeau/aom,GrokImageCompression/aom,smarter/aom,GrokImageCompression/aom,luctrudeau/aom