cpu,soc/intel: Drop select SMP

Implicitly selected with MAX_CPUS != 1.

Change-Id: I4ac3e30e9f96cd52244b4bae73bafce0564d41e0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42091
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>

src/cpu/intel/model_f2x/Kconfig

@@ -4,7 +4,6 @@ config CPU_INTEL_MODEL_F2X
 	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
-	select SMP
 	select SUPPORT_CPU_UCODE_IN_CBFS
 	select SMM_ASEG
 	select CPU_INTEL_COMMON