ARM: dts: msm: Add property to max limit RT axi bw votes

Add cam-max-rt-axi-bw property to provide a max limiting value
for RT axi bw votes.

CRs-Fixed: 3780345
Change-Id: I14e330e02a0d2a9e978470b2c40ea4fe0e747749
Signed-off-by: Mukund Madhusudan Atre <quic_matre@quicinc.com>

bindings/msm-cam-cpas.txt

@@ -97,6 +97,11 @@ First Level Node - CAM CPAS device
   Value type: <u64>
   Definition: Min camnoc axi bw for the given target.
 
+- cam-max-rt-axi-bw
+  Usage: optional
+  Value type: <u64>
+  Definition: Max RT axi bw allowed to be voted for the given target.
+
 - regulator-names
   Usage: required
   Value type: <string>