Fix signed comparison warnings
Tested: unit tests pass.  Unit test only change.
Change-Id: I9b105cf862b70cc788d8aea345504c7e8682eb34
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/test/test_fru-utils.cpp b/test/test_fru-utils.cpp
index 031b4e4..acd712d 100644
--- a/test/test_fru-utils.cpp
+++ b/test/test_fru-utils.cpp
@@ -541,24 +541,25 @@
 
     std::vector<std::vector<uint8_t>> areasData;
     ASSERT_TRUE(disassembleFruData(fruData, areasData));
-    EXPECT_GT(areasData.size(), 1);
+    EXPECT_GT(areasData.size(), 1U);
 
     // Internal area is size is zero
     EXPECT_EQ(areasData[static_cast<size_t>(fruAreas::fruAreaInternal)].size(),
-              0);
+              0U);
     // Chassis are is zero
     EXPECT_EQ(areasData[static_cast<size_t>(fruAreas::fruAreaChassis)].size(),
-              0);
+              0U);
     // Board area is 96 byte
     EXPECT_EQ(areasData[static_cast<size_t>(fruAreas::fruAreaBoard)].size(),
-              96);
+              96U);
     // Product area is 96 byte
     EXPECT_EQ(areasData[static_cast<size_t>(fruAreas::fruAreaProduct)].size(),
-              96);
+              96U);
 
     // Multi-record area is 64 byte.
     EXPECT_EQ(
-        areasData[static_cast<size_t>(fruAreas::fruAreaMultirecord)].size(), 0);
+        areasData[static_cast<size_t>(fruAreas::fruAreaMultirecord)].size(),
+        0U);
 
     EXPECT_TRUE(setField(fruAreas::fruAreaBoard,
                          areasData[static_cast<size_t>(fruAreas::fruAreaBoard)],