[RESEND PATCH v13 6/6] memory: dfl-emif: add the DFL EMIF private feature driver

This driver is for the EMIF private feature implemented under FPGA Device Feature List (DFL) framework. It is used to expose memory interface status information as well as memory clearing control. The purpose of memory clearing block is to zero out all private memory when FPGA is to be reprogramme

[PATCH v13 6/6] memory: dfl-emif: add the DFL EMIF private feature driver

This driver is for the EMIF private feature implemented under FPGA Device Feature List (DFL) framework. It is used to expose memory interface status information as well as memory clearing control. The purpose of memory clearing block is to zero out all private memory when FPGA is to be reprogramme