src: Add required space after "switch"

Change-Id: I85cf93e30606bc7838852bd300a369e79370629a
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/29623
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/northbridge/amd/agesa/family15tn/northbridge.c b/src/northbridge/amd/agesa/family15tn/northbridge.c
index 0361a77..ae0830c 100644
--- a/src/northbridge/amd/agesa/family15tn/northbridge.c
+++ b/src/northbridge/amd/agesa/family15tn/northbridge.c
@@ -964,7 +964,7 @@
 {
 	u32 new_vendev = vendev;
 
-	switch(vendev) {
+	switch (vendev) {
 	case 0x10029900:	/* AMD Radeon HD 7660G (Trinity)  */
 	case 0x10029901:	/* AMD Radeon HD 7660D (Trinity)  */
 	case 0x10029903:	/* AMD Radeon HD 7640G (Trinity)  */