ARM: SoC updates for 5.18 SoC specific code is generally used for older platforms that don't (yet) use device tree to do the same things. - Support is added for i.MXRT10xx, a Cortex-M7 based microcontroller from NXP. At the moment this is still incomplete as other portions are merged through different trees. - Long abandoned support for running NOMMU ARMv4 or ARMv5 platforms gets removed, now the Arm NOMMU platforms are limited to the Cortex-M family of microcontrollers - Two old PXA boards get removed, along with corresponding driver bits. - Continued cleanup of the Intel IXP4xx platforms, removing some remnants of the old board files. - Minor Cleanups and fixes for Orion, PXA, MMP, Mstar, Samsung - CPU idle support for AT91 - A system controller driver for Polarfire