Add support code required for DWCDriver 'FIQ fix'
Detail: hdr/BCM2835, hdr/USB, s/USB - Update HAL_USBControllerInfo to return the MPHI address & IRQ number s/Interrupts - Add some missing memory barriers. Change FIQ enable/disable calls to not alter IRQ masking of the interrupt - simplifies the code and avoids any ordering issues with code that switches interrupts between IRQ & FIQ s/Timers - Add missing memory barrier Admin: Tested on Raspberry Pi Requires Kernel-5_35-4_79_2_227 to build Version 0.34. Tagged as 'BCM2835-0_34'
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