lib/reg_script: Fix braces

In If0d4d61ed8ef48ec20082b327f358fd1987e3fb9 the code
was changed from one to two lines in the body of an if()
statement, without adding braces.

Change-Id: Ibbbdf240157adae95151fb2ce0135948caa60108
Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Reviewed-on: https://review.coreboot.org/14621
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins)
Reviewed-by: Leroy P Leahy <leroy.p.leahy@intel.com>

src/lib/reg_script.c

@@ -478,9 +478,10 @@ static uint64_t reg_script_read(struct reg_script_context *ctx)
 
 			/* Read from the platform specific bus */
 			bus = find_bus(step);
-			if (NULL != bus)
+			if (NULL != bus) {
 				value = bus->reg_script_read(ctx);
 				break;
+			}
 		}
 		printk(BIOS_ERR,
 			"Unsupported read type (0x%x) for this device!\n",