HSD #14014656595: drivers: net: phy: add qsfp_phy support

commit b9927cdeeb591cacbd31206530d54a98ce08207f from
https://github.com/altera-opensource/linux-socfpga.git



This patch adds qsfp_phy support to the E-Tile Ethernet controller.

Signed-off-by: NagarajuDeepakX <deepakx.nagaraju@intel.com>
Signed-off-by: Wenlin Kang <wenlin.kang@windriver.com>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>