Documentation: qat: update debugfs-driver-qat_telemetry for GEN6 devices

Expands telemetry documentation for supporting QAT GEN6 device. Introduces
new parameters to capture compression, decompression slice utilization and
execution count.

Co-developed-by: George Abraham P <george.abraham.p@intel.com>
Signed-off-by: George Abraham P <george.abraham.p@intel.com>
Signed-off-by: Vijay Sundar Selvamani <vijay.sundar.selvamani@intel.com>
Signed-off-by: Suman Kumar Chakraborty <suman.kumar.chakraborty@intel.com>
Reviewed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

Author: vijaysundars

Documentation/ABI/testing/debugfs-driver-qat_telemetry

@@ -32,7 +32,7 @@ Description:	(RW) Enables/disables the reporting of telemetry metrics.
 
 		  echo 0 > /sys/kernel/debug/qat_4xxx_0000:6b:00.0/telemetry/control
 
-		This attribute is only available for qat_4xxx devices.
+		This attribute is only available for qat_4xxx and qat_6xxx devices.
 
 What:		/sys/kernel/debug/qat_<device>_<BDF>/telemetry/device_data
 Date:		March 2024
@@ -67,6 +67,10 @@ Description:	(RO) Reports device telemetry counters.
 		exec_xlt<N>		execution count of Translator slice N
 		util_dcpr<N>		utilization of Decompression slice N [%]
 		exec_dcpr<N>		execution count of Decompression slice N
+		util_cnv<N>		utilization of Compression and verify slice N [%]
+		exec_cnv<N>		execution count of Compression and verify slice N
+		util_dcprz<N>		utilization of Decompression slice N [%]
+		exec_dcprz<N>		execution count of Decompression slice N
 		util_pke<N>		utilization of PKE N [%]
 		exec_pke<N>		execution count of PKE N
 		util_ucs<N>		utilization of UCS slice N [%]
@@ -100,7 +104,7 @@ Description:	(RO) Reports device telemetry counters.
 		If a device lacks of a specific accelerator, the corresponding
 		attribute is not reported.
 
-		This attribute is only available for qat_4xxx devices.
+		This attribute is only available for qat_4xxx and qat_6xxx devices.
 
 What:		/sys/kernel/debug/qat_<device>_<BDF>/telemetry/rp_<A/B/C/D>_data
 Date:		March 2024
@@ -225,4 +229,4 @@ Description:	(RW) Selects up to 4 Ring Pairs (RP) to monitor, one per file,
 		``rp2srv`` from sysfs.
 		See Documentation/ABI/testing/sysfs-driver-qat for details.
 
-		This attribute is only available for qat_4xxx devices.
+		This attribute is only available for qat_4xxx and qat_6xxx devices.