arm64/dts: felix: set clamp from 620 to 820

Bug: 289139673
Test: local verification pass
Change-Id: I94924157da22378df53cf563db634a39d7c2d572
diff --git a/dts/gs201-felix-uwb.dtsi b/dts/gs201-felix-uwb.dtsi
index 345a040..edc92e8 100644
--- a/dts/gs201-felix-uwb.dtsi
+++ b/dts/gs201-felix-uwb.dtsi
@@ -52,7 +52,7 @@
 		decawave,eui64 = /bits/ 64 <0>;
 		decawave,panid = /bits/ 16 <0>;
 
-		min_clamp = <620>;
+		min_clamp = <820>;
 
 		status = "okay";