drivers/intel/dptf: Add new thermal control mechanism for pch device

Add new thermal control mechanism for pch device under dptf driver.
This provides support of different control knobs for FIVR.

BUG=b:198582766
BRANCH=None
TEST=Build FW and test on brya0 board

Change-Id: I035d2844b9ba6a9532ae006fc1c43e34cb94328a
Signed-off-by: Sumeet Pawnikar <sumeet.r.pawnikar@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57096
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>

src/drivers/intel/dptf/dptf.h

@@ -14,6 +14,9 @@ struct dptf_platform_info {
 	const char *dptf_device_hid;
 	const char *generic_hid;
 	const char *fan_hid;
+	const char *tpch_device_hid;
+	const char *tpch_rfc0_method;
+	const char *tpch_rfc1_method;
 };
 
 const struct dptf_platform_info *get_dptf_platform_info(void);