[RESEND PATCH v3 1/4] fpga: region: don't use drvdata in common fpga code

Part of patchset that changes the following fpga_*_register functions to not set drvdata: * fpga_region_register. * fpga_mgr_register * fpga_bridge_register The rationale is that setting drvdata is fine for DT based devices that will have one manager, bridge, or region per platform device.

[RESEND PATCH v3 1/4] fpga: region: don't use drvdata in common fpga code

Part of patchset that changes the following fpga_*_register functions to not set drvdata: * fpga_region_register. * fpga_mgr_register * fpga_bridge_register The rationale is that setting drvdata is fine for DT based devices that will have one manager, bridge, or region per platform device.