Two commits which made their way into Linux stable broke the SATA
support on the BPi-R64.
Fix this by reverting a node rename which broke DT-overlay application
and import a (still pending) patch re-adding the 'syscon' compatible
to the pciesys clock-controller which also contains phy-mode bits
referenced by the ahci_mtk driver expecting to access them using
syscon_regmap_lookup_by_phandle().
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
