phy: marvell: cp110: update mode parameter for pcie power on calls

phy: marvell: cp110: update mode parameter for pcie power on calls

It helps ATF to determine who called power on function (U-boot/Linux).

The corresponding ATF code was added in this commit:

  mvebu: cp110: avoid pcie power on/off sequence when called from Linux
  https://github.com/ARM-software/arm-trusted-firmware/commit/55df84f974ea37abbb4f93f000f101f70cda5303

Signed-off-by: Igal Liberman <igall@marvell.com>
Reviewed-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>