Prevent PVQ SSE search from putting pulses beyond n-1
Prevent PVQ SSE search from putting pulses beyond n-1

Change-Id: Ib9fec5f2e00ecd73006a603a61d3fddee5229cf8

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