platform:x86: Add Intel telemetry platform driver

Telemetry platform driver implements the telemetry interfaces.
Currently it supports ApolloLake. It uses the PUNIT and PMC IPC
interfaces to configure the telemetry samples to read.
The samples are read from a Secure SRAM region.
Signed-off-by: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

MAINTAINERS

@@ -5707,6 +5707,7 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/intel_telemetry_core.c
 F:	arch/x86/include/asm/intel_telemetry.h
+F:	drivers/platform/x86/intel_telemetry_pltdrv.c
 
 IOC3 ETHERNET DRIVER
 M:	Ralf Baechle <ralf@linux-mips.org>

drivers/platform/x86/Makefile

@@ -65,4 +65,5 @@ obj-$(CONFIG_ALIENWARE_WMI)	+= alienware-wmi.o
 obj-$(CONFIG_INTEL_PMC_IPC)	+= intel_pmc_ipc.o
 obj-$(CONFIG_SURFACE_PRO3_BUTTON)	+= surfacepro3_button.o
 obj-$(CONFIG_INTEL_PUNIT_IPC)  += intel_punit_ipc.o
-obj-$(CONFIG_INTEL_TELEMETRY)	+= intel_telemetry_core.o
+obj-$(CONFIG_INTEL_TELEMETRY)	+= intel_telemetry_core.o \
+				   intel_telemetry_pltdrv.o