sata_rcar: Reset SATA PHY when Salvator-X board resumes

sata_rcar: Reset SATA PHY when Salvator-X board resumes

Because power of Salvator-X board is cut off in suspend,
it needs to reset SATA PHY state in resume.
Otherwise, SATA partition could not be accessed anymore.

Signed-off-by: Khiem Nguyen <[email protected]>
Signed-off-by: Hien Dang <[email protected]>
[reinit phy in sata_rcar_resume() function on R-Car Gen3 only]
[factor out SATA module init sequence]
[fixed the prefix for the subject]
Signed-off-by: Yoshihiro Kaneko <[email protected]>
Signed-off-by: Tejun Heo <[email protected]>