soc/intel/apollolake: provide SMM dependency requirements

Depending on which options are selected there needs to be certain
functions supplied. However, the spi, mmap_boot, and tsc_freq modules
were not included in the SMM builds. Fix the omission.

Change-Id: I25ab42886cfd46770ce0f4beee65f2f4d15649f3
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/14977
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>

src/soc/intel/apollolake/Makefile.inc

@@ -29,8 +29,11 @@ romstage-y += mmap_boot.c
 romstage-y += tsc_freq.c
 romstage-y += pmutil.c
 
+smm-y += mmap_boot.c
 smm-y += pmutil.c
 smm-y += smihandler.c
+smm-y += spi.c
+smm-y += tsc_freq.c
 
 ramstage-$(CONFIG_HAVE_ACPI_TABLES) += acpi.c
 ramstage-y += cpu.c