fix legend location for numa scan ipq/ipc

analyze/memcached_numa_scan_ipq_ipc.py

@@ -35,7 +35,7 @@ def plot():
     ax1.set_ylim(0, 25000)
     ax2.set_ylim(0, 1)
 
-    ax2.legend(loc = 'lower right')
+    ax2.legend(loc = 'upper right')
     ax1.legend(loc = 'upper left')
     if os.getenv('SAVE_FIGURE') != 'true':
         plt.rcParams.update({'font.size': 16})