const runtime.logPallocChunkBytes

3 uses

	runtime (current package)
		mpagealloc.go#L62: 	logPallocChunkBytes = logPallocChunkPages + gc.PageShift
		mpagealloc.go#L76: 	summaryL0Bits    = heapAddrBits - logPallocChunkBytes - (summaryLevels-1)*summaryLevelBits
		mpagealloc.go#L83: 	pallocChunksL2Bits  = heapAddrBits - logPallocChunkBytes - pallocChunksL1Bits