rtl8192u: fix whitespace around ~ in r8180_93cx6.c

This patch fixes the whitespace around ~ and corrects the
following checkpatch error:
ERROR: space prohibited after that '~'
Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/r8180_93cx6.c

@@ -28,7 +28,7 @@ void eprom_cs(struct net_device *dev, short bit)
 			       read_nic_byte_E(dev, EPROM_CMD)); //enable EPROM
 	else
 		write_nic_byte_E(dev, EPROM_CMD, read_nic_byte_E(dev, EPROM_CMD)\
-			       &~(1<<EPROM_CS_SHIFT)); //disable EPROM
+			       & ~(1<<EPROM_CS_SHIFT)); //disable EPROM
 
 	force_pci_posting(dev);
 	udelay(EPROM_DELAY);
@@ -42,7 +42,7 @@ void eprom_ck_cycle(struct net_device *dev)
 	force_pci_posting(dev);
 	udelay(EPROM_DELAY);
 	write_nic_byte_E(dev, EPROM_CMD,
-		       read_nic_byte_E(dev, EPROM_CMD) &~ (1<<EPROM_CK_SHIFT));
+		       read_nic_byte_E(dev, EPROM_CMD) & ~(1<<EPROM_CK_SHIFT));
 	force_pci_posting(dev);
 	udelay(EPROM_DELAY);
 }
@@ -55,7 +55,7 @@ void eprom_w(struct net_device *dev,short bit)
 			       read_nic_byte_E(dev,EPROM_CMD));
 	else
 		write_nic_byte_E(dev, EPROM_CMD, read_nic_byte_E(dev,EPROM_CMD)\
-			       &~(1<<EPROM_W_SHIFT));
+			       & ~(1<<EPROM_W_SHIFT));
 
 	force_pci_posting(dev);
 	udelay(EPROM_DELAY);