Small tool, doc, sample enhancements.

- Expand message when HIP version mismatch detected.
- Doc touchup.
- change sorting of hipBusBandwidth so byte results shown at top.
-

Change-Id: Ifb4e44a5fdfb65d59c4994b11e5f13385705f7e0

samples/1_Utils/hipBusBandwidth/hipBusBandwidth.cpp

@@ -49,8 +49,8 @@ std::string sizeToString(int size)
     using namespace std;
     stringstream ss;
     if (size < 0) {
-        // char (09, horiz tab) lexically sorts before " " so will cause Byte values to be displayed before kB.
-        ss << char(0x09)/*tab*/ << setfill('0') << setw(3) << -size <<  "B";
+        // char (-) lexically sorts before " " so will cause Byte values to be displayed before kB.
+        ss << "+" << setfill('0') << setw(3) << -size <<  "By";
     } else {
         ss << size << "kB";
     }