Reset controller changes for v4.18

This adds PCIe, SATA, and HSC reset control support on various Uniphier
SoCs. PCIe reset control is added for Pro5, LD20, and PXs3 SoCs, SATA
reset control support is added on Pro4 and PXs3 SoCs. The previously
added PXs2 SATA reset control identifier is changed to the same value
for consistency. HSC (MPEG2 transport stream I/O and demux system) reset
controls are added for LD11 and LD20 SoCs.
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