staging: rtl8192u: Add space around binary operators

This patch fixes the file r8180_93cx6.c to avoid the checkpatch.pl warnings:

	CHECK: spaces preferred around that '<<' (ctx:VxV)
	CHECK: spaces preferred around that '-' (ctx:VxV)
Signed-off-by: NSumera Priyadarsini <sylphrenadin@gmail.com>
Link: https://lore.kernel.org/r/20190822193535.14357-1-sylphrenadin@gmail.comSigned-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8180_93cx6.c

@@ -114,7 +114,7 @@ int eprom_read(struct net_device *dev, u32 addr)
 	ret = 0;
 	/* enable EPROM programming */
 	write_nic_byte_E(dev, EPROM_CMD,
-		       (EPROM_CMD_PROGRAM<<EPROM_CMD_OPERATING_MODE_SHIFT));
+		       (EPROM_CMD_PROGRAM << EPROM_CMD_OPERATING_MODE_SHIFT));
 	force_pci_posting(dev);
 	udelay(EPROM_DELAY);
 
@@ -157,7 +157,7 @@ int eprom_read(struct net_device *dev, u32 addr)
 		if (err < 0)
 			return err;
 
-		ret |= err<<(15-i);
+		ret |= err << (15 - i);
 	}
 
 	eprom_cs(dev, 0);
@@ -165,6 +165,6 @@ int eprom_read(struct net_device *dev, u32 addr)
 
 	/* disable EPROM programming */
 	write_nic_byte_E(dev, EPROM_CMD,
-		       (EPROM_CMD_NORMAL<<EPROM_CMD_OPERATING_MODE_SHIFT));
+		       (EPROM_CMD_NORMAL << EPROM_CMD_OPERATING_MODE_SHIFT));
 	return ret;
 }