RDKB-28290 : macToLower uses strtok
RDKB-28290 : macToLower uses strtok

Reason for change: Function is implemented using thread-unsafe strtok()
Test Procedure: Verify the mac address in webpainterface.
Risks: None
Signed-off-by: Sunu_Sunil@comcast.com

(cherry picked from commit 37c110650ea5b15773b2687cdabcfa4776c95076)
Change-Id: Ib8d31160bf30c5116d63ea6a51bb99ea247def10

rdkcmf/rdkb-CcspLMLite,rdkcmf/rdkb-CcspLMLite,rdkcmf/rdkb-CcspLMLite