cli: Increased timeout for gluster volume heal commnads

Problem:
If number of files are very large, then gluster volume heal
volumename info commnads take large time. So timeout of 2
minutes seems to be insufficient.

Fix:
Increased timeout to 10 minutes

Change-Id: I5f847163e01c4afbb587b726833ad80183f1a928
BUG: 986945
Signed-off-by: Venkatesh Somyajulu <vsomyaju@redhat.com>
Reviewed-on: http://review.gluster.org/5372
Reviewed-by: Kaushal M <kaushal@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>