phy: extend APIs of the generic phy framework

This change adds a few more APIs to the phy_ops structure:
advertise_quirks - an API for setting the phy quirks
suspend - an API for the implementation of
          phy suspend sequence
resume - an API for implementation of phy resume sequence

Change-Id: Idc76e7aef7fa1029f4d9d8baedae869346992da8
Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org>