ARM: dts: msm: Update multi queue and ptp config for stmmac

Update RX queue classification for EMAC.
Add PTP reference and required clock rates.

Change-Id: Ib2150ba250ff6c7f9eea04ca8f6e7aaf458574e1
Acked-by: Rahul Kawadgave <rahulak@qti.qualcomm.com>
Signed-off-by: Sunil Paidimarri <hisunil@codeaurora.org>