Fix forward transform compilation errors
Fix forward transform compilation errors

BUG=aomedia:395

Change-Id: I381f16e66e2540c9bf24727abf8915a3850dcc92

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