For LPC mode, host only need to configure the filter for
monitor status ring, filter for STA RXDMA_BUF has been
configured during dp_soc init, do not touch filter of
RXDMA_BUF for LPC mode.
Change-Id: Ia64b0f608ce7c31517ef7174293bc52e6d4ab9b7
CRs-Fixed: 3531963