src: remove force-included header rules.h from individual files

The header file `rules.h` is automatically included in the build by the
top level makefile using the command:
`-include src/soc/intel/common/block/scs/early_mmc.c`.

Similar to `config.h` and 'kconfig.h`, this file does not need to be
included manually, so remove it.

Signed-off-by: Martin Roth <gaumless@gmail.com>
Change-Id: I23a1876b4b671d8565cf9b391d3babf800c074db
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67348
Reviewed-by: Elyes Haouas <ehaouas@noos.fr>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/arch/arm/armv7/cpu.S

@@ -6,7 +6,6 @@
  */
 
 #include <arch/asm.h>
-#include <rules.h>
 
 /*
  * Dcache invalidations by set/way work by passing a [way:sbz:set:sbz:level:0]

src/arch/arm/include/arch/header.ld

@@ -1,7 +1,5 @@
 /* SPDX-License-Identifier: GPL-2.0-only */
 
-#include <rules.h>
-
 /* We use ELF as output format. So that we can debug the code in some form. */
 OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm")
 OUTPUT_ARCH(arm)