Create address tracker for am_alloc.

Tracks device where memory is allocated, pinned-host or device, and
more.

Uses memory-range-based lookups - so pointers that exist anywhere in

the range of hostPtr + size will find the associated AmPointerInfo.

The insertions and lookups use a self-balancing binary tree and
should support O(logN) lookup speed.

bin/hipcc

@@ -71,6 +71,7 @@ if ($HIP_PLATFORM eq "hcc") {
 	$HIPLDFLAGS .= " -L$HSA_PATH/lib -lhsa-runtime64 -lhc_am";
 	# Add C++ libs for GCC.
 	$HIPLDFLAGS .= " -lstdc++";
+	$HIPLDFLAGS .= " -lm";
 
     if ($verbose & 0x2) {
         print ("HSA_PATH=$HSA_PATH\n");