[libata] trim trailing whitespace

Most of these contributed by that mysterious figger known as A.C.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/ata/pata_hpt366.c b/drivers/ata/pata_hpt366.c
index 2663599..8cf167e 100644
--- a/drivers/ata/pata_hpt366.c
+++ b/drivers/ata/pata_hpt366.c
@@ -232,7 +232,7 @@
 
 	if (!pci_test_config_bits(pdev, &hpt36x_enable_bits[ap->port_no]))
 		return -ENOENT;
-		
+
 	pci_read_config_byte(pdev, 0x5A, &ata66);
 	if (ata66 & (1 << ap->port_no))
 		ap->cbl = ATA_CBL_PATA40;