Merge tag 'omap-for-v4.20/ti-sysc-take2-signed' into omap-for-v4.21/dt-ti-sysc

Merge tag 'omap-for-v4.20/ti-sysc-take2-signed' into omap-for-v4.21/dt-ti-sysc

TI sysc driver changes for v4.20 merge window

This series gets rid of the SYSC_QUIRK_RESOURCE_PROVIDER to make device
detection happen mostly only if #define DEBUG is set. Few core devices still
need to be detected to set legacy quirks.

We also add support for booting am335x, am437x and dra7 SoCs with L4 devices
defined in device tree instead of legacy platform data.

And finally we simplify suspend with just SET_NOIRQ_SYSTEM_SLEEP_PM_OPS
and dropping the custom functions that were attempting to work around
issues that really turned out to be child device driver related issues.

Apologies for a late pull request, debugging the suspend issues took a while
and I did not want to send these changes until that got sorted out.