Move select MMCONF_SUPPORT under northbridge

Move/remove MMCONF_SUPPORT reference under mainboard Kconfig, as
that feature originates from northbridge and cannot be disabled
for a single mainboard.

Change-Id: I6d6861079876ddddaff90b10f18edb6936e93bd0
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/3589
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>

src/northbridge/intel/haswell/Kconfig

@@ -22,6 +22,7 @@ config NORTHBRIDGE_INTEL_HASWELL
 	select CACHE_MRC_BIN
 	select CPU_INTEL_HASWELL
 	select REQUIRES_BLOB
+	select MMCONF_SUPPORT
 	select MMCONF_SUPPORT_DEFAULT
 
 if NORTHBRIDGE_INTEL_HASWELL

src/northbridge/intel/i3100/Kconfig

@@ -1,5 +1,6 @@
 config NORTHBRIDGE_INTEL_I3100
 	bool
+	select MMCONF_SUPPORT
 
 if NORTHBRIDGE_INTEL_I3100
 config DIMM_MAP_LOGICAL

src/northbridge/intel/i5000/Kconfig

@@ -19,6 +19,7 @@
 
 config NORTHBRIDGE_INTEL_I5000
 	bool
+	select MMCONF_SUPPORT
 	select HAVE_DEBUG_RAM_SETUP
 
 config NORTHBRIDGE_INTEL_I5000_RAM_CHECK

src/northbridge/intel/sch/Kconfig

@@ -19,6 +19,7 @@
 
 config NORTHBRIDGE_INTEL_SCH
 	bool
+	select MMCONF_SUPPORT
 
 if NORTHBRIDGE_INTEL_SCH