[Tex] Fixed Histogram parameters type mismatch

- updated textproto config to match implementation

Bug: 286387647
Test: build
Change-Id: I0332e6a2d8072bd7bb3e776c15c538473e7026dc
diff --git a/stats/express/express_config.proto b/stats/express/express_config.proto
index 04f992d..7a7f922 100644
--- a/stats/express/express_config.proto
+++ b/stats/express/express_config.proto
@@ -39,15 +39,20 @@
 
     message UniformBinningOptions {
         optional int32 count = 1;
+
+        // Inclusive min value, values < min will go to underflow bin
         optional float min = 2;
+
+        // Exclusive max value, values >= max will go to overflow bin
         optional float max = 3;
     }
 
     message ScaledBinningOptions  {
         optional int32 count = 1;
-        optional float min = 2;
+        optional float min = 2 [deprecated = true];
         optional float first_bin_width = 3;
         optional float scale = 4;
+        optional int32 min_value = 5;
     }
 
     oneof options {