It is not possible to manage Linux clients via the SEPM. Although SAVFL logs can be sent to the SEPM via SAVFL Report, the SEPM can only manage Window clients at this time.
Symantec has an AV product for Linux called SAV for Linux (SAVFL). It is separate from SEP and cannot be managed via a SEPM.
More info at these links:
Management of Symantec AntiVirus (SAV) for Linux
About the Symantec AntiVirus client for Linux
A managed version of SAVFL is on the Symantec Endoint Protection roadmap. You can vote on the Idea here:
https://www-secure.symantec.com/connect/idea/linux-unmanaged-client