Add new SCMI v4.0 Telemetry protocol bindings definitions.

Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
v3 --> v4
 - changed protocol number to lowercase 1b
 - fixed misplaced block for protocol 0x1b

Cc: Rob Herring <robh@kernel.org>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: devicetree@vger.kernel.org
---
 Documentation/devicetree/bindings/firmware/arm,scmi.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
index d06cca9273c4..be733f8d60a0 100644
--- a/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
+++ b/Documentation/devicetree/bindings/firmware/arm,scmi.yaml
@@ -324,6 +324,14 @@ properties:
     required:
       - reg
 
+  protocol@1b:
+    $ref: '#/$defs/protocol-node'
+    unevaluatedProperties: false
+
+    properties:
+      reg:
+        const: 0x1b
+
 unevaluatedProperties: false
 
 $defs:
-- 
2.54.0