fix: eth: msys_bc2: set MAC speed configuration as Auto negotiation for RD-MTL board

        The ETH MAC configuration for BC2 RD-MTL  board was forced to 1000M.
        this caused an issue when connected to lower speed ports (i.e 100M)
        - This is wrong, and replaced to use Auto negotiation

Change-Id: I2795a6dbfd9def794f07ddbf64ad702f9e0681e4
Signed-off-by: Omri Itach <omrii@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/23159
Tested-by: Star_Automation <star@marvell.com>
1 file changed