Add memory allocation to Comm mock in TreeCommLevelTest.
Add memory allocation to Comm mock in TreeCommLevelTest.

Change-Id: I2bac87a2b3cc5140848da6089fc1bc64ec485e48
Signed-off-by: Diana Guttman <98d11df29868673c9a01b97a41154316626a31b0@intel.com>

cmcantalupo/geopm,cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,geopm/geopm,cmcantalupo/geopm,geopm/geopm,geopm/geopm