msm: fsm9900: Read MAC address from fuse

Add support to read the MAC address from fuse and populate the EMAC dt.
EMAC driver will use this address to initialize hardware.

Change-Id: I6323482d79fc5bebf9a76fa8ecfe3514d75b9fa9
Acked-by: Kaushik Sikdar <ksikdar@qti.qualcomm.com>
Signed-off-by: Rohit Vaswani <rvaswani@codeaurora.org>