[PATCH v2] net: stmmac: dwmac-rk: add rk3228-specific data

From: Xing Zheng <redacted>
Date: Tue, 21 Jun 2016 20:33:28 +0800

Add constants and callback functions for the dwmac on rk3228/rk3229 socs.
As can be seen, the base structure is the same, only registers and the
bits in them moved slightly.

Signed-off-by: Xing Zheng <redacted>

Applied, thanks.