Change in coreboot[master]: src: Remove unused <cpu/x86/smm.h>

[Angel Pons (Code Review)]

Attention is currently required from: Patrick Rudolph, HAOUAS Elyes.
Angel Pons has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50171 )

Change subject: src: Remove unused <cpu/x86/smm.h>
......................................................................

Patch Set 1: Code-Review+2

(1 comment)

File src/soc/intel/broadwell/pch/acpi.c:

https://review.coreboot.org/c/coreboot/+/50171/comment/00b5617f_ac019817 
PS1, Line 3: #include <acpi/acpi.h>
           : #include <acpi/acpigen.h>
           : #include <arch/ioapic.h>
           : #include <arch/smp/mpspec.h>
           : #include <cbmem.h>
           : #include <device/pci_ops.h>
           : #include <cpu/x86/smm.h>
           : #include <console/console.h>
           : #include <types.h>
           : #include <string.h>
           : #include <arch/cpu.h>
           : #include <cpu/x86/msr.h>
           : #include <cpu/intel/turbo.h>
           : #include <soc/acpi.h>
           : #include <soc/iomap.h>
           : #include <soc/lpc.h>
           : #include <soc/pci_devs.h>
           : #include <soc/pm.h>
           : #include <soc/systemagent.h>
           : #include <soc/intel/broadwell/chip.h>
> There is more includes than code lines 😄

I will get rid of this file with CB:46888 and CB:46889