mb/amd: Drop unneeded empty lines

Change-Id: Ib82689150689716bc9afdf8d4527a1dcd5deae56
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44612
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/mainboard/amd/persimmon/OemCustomize.c

@@ -1,11 +1,9 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-
 #include <AGESA.h>
 #include <northbridge/amd/agesa/state_machine.h>
 #include <PlatformMemoryConfiguration.h>
 
-
 static const PCIe_PORT_DESCRIPTOR PortList[] = {
 	// Initialize Port descriptor (PCIe port, Lanes 4, PCI Device Number 4, ...)
 	{