platform/x86: intel_speed_select_if: Move to intel sub-directory

Move Intel Speed Select interface driver to intel sub-directory to improve
readability and rename it from intel_speed_select_if to speed_select_if.

Signed-off-by: Kate Hsuan <[e-mail]>
Reviewed-by: Hans de Goede <[e-mail]>
Signed-off-by: Andy Shevchenko <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Hans de Goede <[e-mail]>

MAINTAINERS

···
 M:	Srinivas Pandruvada <[e-mail]>
 L:	[e-mail]
 S:	Maintained
-F:	drivers/platform/x86/intel_speed_select_if/
+F:	drivers/platform/x86/intel/speed_select_if/
 F:	include/uapi/linux/isst_if.h
 F:	tools/power/x86/intel-speed-select/
 

drivers/platform/x86/Kconfig

···
 	  functionality.  If in doubt, say Y here; it will only load on
 	  supported platforms.
 
-source "drivers/platform/x86/intel_speed_select_if/Kconfig"
-
 config INTEL_SCU_IPC
 	bool
 

drivers/platform/x86/Makefile

···
 
 # Intel uncore drivers
 obj-$(CONFIG_INTEL_IPS)				+= intel_ips.o
-obj-$(CONFIG_INTEL_SPEED_SELECT_INTERFACE)	+= intel_speed_select_if/
 
 # Intel PMIC / PMC / P-Unit devices
 obj-$(CONFIG_INTEL_SCU_IPC)		+= intel_scu_ipc.o

drivers/platform/x86/intel/Kconfig

···
 source "drivers/platform/x86/intel/int3472/Kconfig"
 source "drivers/platform/x86/intel/pmc/Kconfig"
 source "drivers/platform/x86/intel/pmt/Kconfig"
+source "drivers/platform/x86/intel/speed_select_if/Kconfig"
 source "drivers/platform/x86/intel/telemetry/Kconfig"
 
 config INTEL_BXTWC_PMIC_TMU

drivers/platform/x86/intel/Makefile

···
 obj-$(CONFIG_INTEL_SKL_INT3472)		+= int3472/
 obj-$(CONFIG_INTEL_PMC_CORE)		+= pmc/
 obj-$(CONFIG_INTEL_PMT_CLASS)		+= pmt/
+obj-$(CONFIG_INTEL_SPEED_SELECT_INTERFACE) += speed_select_if/
 obj-$(CONFIG_INTEL_TELEMETRY)		+= telemetry/
 
 # Intel PMIC / PMC / P-Unit drivers