src/include: Remove braces for single statements

Fix the following warning detected by checkpatch.pl:

WARNING: braces {} are not necessary for single statement blocks

TEST=Build and run on Galileo Gen2

Change-Id: I00b59f6a27c3acb393deaa763596363b7e958efd
Signed-off-by: Lee Leahy <Leroy.P.Leahy@intel.com>
Reviewed-on: https://review.coreboot.org/18654
Tested-by: build bot (Jenkins)
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/include/device/pci.h

@@ -103,9 +103,8 @@ static inline const struct pci_operations *ops_pci(device_t dev)
 {
 	const struct pci_operations *pops;
 	pops = 0;
-	if (dev && dev->ops) {
+	if (dev && dev->ops)
 		pops = dev->ops->ops_pci;
-	}
 	return pops;
 }