This patch adds initial support for qca8084 PHY which is based on qca8081 PHY. qca8084 PHY has support for 4x2.5G. Change-Id: Ic767c19fad050e5ee9a97ad7fa50c1b6b27893dd Signed-off-by: Selvam Sathappan Periakaruppan <quic_speriaka@quicinc.com>