mfd: intel_pmt: Only compile on x86

The intel_pmt driver shows up as a compile option for all arches but is
32-bit and 64-bit x86 specific.

Add a CONFIG dependency on X86 for intel_pmt.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Reviewed-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

drivers/mfd/Kconfig

@@ -692,7 +692,7 @@ config MFD_INTEL_PMC_BXT
 
 config MFD_INTEL_PMT
 	tristate "Intel Platform Monitoring Technology (PMT) support"
-	depends on PCI
+	depends on X86 && PCI
 	select MFD_CORE
 	help
 	  The Intel Platform Monitoring Technology (PMT) is an interface that