ART: Print jit memory use only if we have samples

Otherwise we got crashes on sigquit/shutdown trying to dump
JIT statistics when the histograms are empty.

Change-Id: Iac3ab5b51121f9bb5656f6ef71af785706541288
Signed-off-by: Pavel Vyssotski <pavel.n.vyssotski@intel.com>
1 file changed