staging:r8180: coding style: Fixed commenting style

This is a patch to the r8180_93cx6.c file that fixes
commenting style warning

Signed-off-by: Sanjeev Sharma <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rtl8192u/r8180_93cx6.c

···
 	u32 ret;
 
 	ret = 0;
-	//enable EPROM programming
+	/* enable EPROM programming */
 	write_nic_byte_E(dev, EPROM_CMD,
 		       (EPROM_CMD_PROGRAM<<EPROM_CMD_OPERATING_MODE_SHIFT));
 	force_pci_posting(dev);
···
 	eprom_send_bits_string(dev, read_cmd, 3);
 	eprom_send_bits_string(dev, addr_str, addr_len);
 
-	//keep chip pin D to low state while reading.
-	//I'm unsure if it is necessary, but anyway shouldn't hurt
+	/*
+	 * keep chip pin D to low state while reading.
+	 * I'm unsure if it is necessary, but anyway shouldn't hurt
+	 */
 	eprom_w(dev, 0);
 
 	for (i = 0; i < 16; i++) {
-		//eeprom needs a clk cycle between writing opcode&adr
-		//and reading data. (eeprom outs a dummy 0)
+		/* eeprom needs a clk cycle between writing opcode&adr
+		 * and reading data. (eeprom outs a dummy 0)
+		 */
 		eprom_ck_cycle(dev);
 		ret |= (eprom_r(dev)<<(15-i));
 	}
···
 	eprom_cs(dev, 0);
 	eprom_ck_cycle(dev);
 
-	//disable EPROM programming
+	/* disable EPROM programming */
 	write_nic_byte_E(dev, EPROM_CMD,
 		       (EPROM_CMD_NORMAL<<EPROM_CMD_OPERATING_MODE_SHIFT));
 	return ret;