src/drivers: Drop unneeded empty lines

Change-Id: I202e5d285612b9bf237b588ea3c006187623fdc3
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44609
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/drivers/amd/agesa/heapmanager.c

@@ -1,6 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-
 #include <AGESA.h>
 #include <amdlib.h>