RDKB-21076 : Observing unary operator expected error for mesh script
RDKB-21076 : Observing unary operator expected error for mesh script

Reason for change:  Shell script error for string comparison

Test Procedure:

1. Enable Mesh in Device
2. Run /usr/ccsp/wifi/mesh_status.sh inside the box
3. Upon executong above, should get logs in
   /rdklogs/logs/MeshAgentLog.txt.0
4. "unary operator expected" error should not be seen.

Risks: Low

Signed-off-by:Dinesh_Rameshbabu2@comcast.com
(cherry picked from commit dde251686922ef9d695450bfbf0b5e80c65acb36)
(cherry picked from commit c5a6b2ad357f6a262007e9380ebffd05065afa2a)

Change-Id: Id5bf17f4c12d6c4a1b27caa366aeb7910426fe15

rdkcmf/rdkb-CcspWifiAgent,rdkcmf/rdkb-CcspWifiAgent,rdkcmf/rdkb-CcspWifiAgent