binder: tests: Fix warnings

Test: no warnings when building

Change-Id: I16ba78a7bbfdc78cdae085d48c2e5e01b8fc244c
Merged-In: I0e8803ff1fc81a83d89a67ce072cf8fd28f2dc67
diff --git a/libs/binder/tests/binderLibTest.cpp b/libs/binder/tests/binderLibTest.cpp
index 54e12b6..456d20b 100644
--- a/libs/binder/tests/binderLibTest.cpp
+++ b/libs/binder/tests/binderLibTest.cpp
@@ -389,7 +389,7 @@
 
     ret = reply.readInt32(&count);
     ASSERT_EQ(NO_ERROR, ret);
-    EXPECT_EQ(ARRAY_SIZE(serverId), count);
+    EXPECT_EQ(ARRAY_SIZE(serverId), (size_t)count);
 
     for (size_t i = 0; i < (size_t)count; i++) {
         BinderLibTestBundle replyi(&reply);
@@ -439,7 +439,7 @@
 
     ret = reply.readInt32(&count);
     ASSERT_EQ(NO_ERROR, ret);
-    EXPECT_EQ(ARRAY_SIZE(serverId), count);
+    EXPECT_EQ(ARRAY_SIZE(serverId), (size_t)count);
 
     for (size_t i = 0; i < (size_t)count; i++) {
         int32_t counti;
@@ -631,7 +631,7 @@
     }
 
     ret = read(pipefd[0], buf, sizeof(buf));
-    EXPECT_EQ(sizeof(buf), ret);
+    EXPECT_EQ(sizeof(buf), (size_t)ret);
     EXPECT_EQ(write_value, buf[0]);
 
     waitForReadData(pipefd[0], 5000); /* wait for other proccess to close pipe */