drm: call clear_payload_id_table when mst mode is enabled

When mst mode is enabled, previous payload id table should be cleared.
This change will call clear_payload_id_table before link_address to
mst branch to clear previous payload id table.

CRs-Fixed: 2412768
Change-Id: I58a606b860424006c60c9cbaf3247cc5f02a3e81
Signed-off-by: Xiaowen Wu <wxiaowen@codeaurora.org>