Merge pull request #30 from eriknyquist/add_chip_id

RawHardwareTest.ino: Add chip ID for W25Q16DV

examples/RawHardwareTest/RawHardwareTest.ino

 		// Winbond
 		if (id[1] == 0x40) {
 			if (id[2] == 0x14) return "W25Q80BV";
+			if (id[2] == 0x15) return "W25Q16DV";
 			if (id[2] == 0x17) return "W25Q64FV";
 			if (id[2] == 0x18) return "W25Q128FV";
 			if (id[2] == 0x19) return "W25Q256FV";