amd/common/pi: Insert missing newline in printk

Add a newline to the unsupported callout message.

Change-Id: I9bfff0ed920843f6c0818b51ee0046366f2a5c8d
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/26144
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

src/soc/amd/common/block/pi/def_callouts.c

@@ -83,7 +83,7 @@ AGESA_STATUS GetBiosCallout(UINT32 Func, UINTN Data, VOID *ConfigPtr)
 	}
 
 	if (i >= BiosCalloutsLen) {
-		printk(BIOS_ERR, "ERROR: AGESA Callout Not Supported: 0x%x",
+		printk(BIOS_ERR, "ERROR: AGESA Callout Not Supported: 0x%x\n",
 			(u32)Func);
 		return AGESA_UNSUPPORTED;
 	}