platform/x86: ISST: Add TPMI target

Add TPMI as one of the device type which can be registered with ISST
common driver.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20230211063257.311746-3-srinivas.pandruvada@linux.intel.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/intel/speed_select_if/isst_if_common.h

@@ -30,7 +30,8 @@
 
 #define ISST_IF_DEV_MBOX	0
 #define ISST_IF_DEV_MMIO	1
-#define ISST_IF_DEV_MAX		2
+#define ISST_IF_DEV_TPMI	2
+#define ISST_IF_DEV_MAX		3
 
 /**
  * struct isst_if_cmd_cb - Used to register a IOCTL handler