PolarFire SoC Bare metal Example Projects

DMA memory access benchmark
- P-DMA Performance
- CoreAXI4DMAController (F-DMA) performance
- P-DMA, F-DMA concurrent access Benchmarking
- Impact of L2 Cache configuration in DMA performance
MSS USB
- First release
- Example projects for USB class MSC, HID and UVC (device only)
MSS SPI
- Initialization issue fix
- Maintenance update
MSS MMUART
- Maintenance
MMS MPFS HAL
- Add reference information on the MPFS Video Kit to the related project README.md
- Running CoreMark on Renode for all build configs
- Added sample src/boards folder DDR4. Tested on FTD Timeprovider4100 board
  - mpfs-tp4100-666Hz
  - mpfs-tp4100-800Hz
MSS Watchdog
- Maintenance
MSS GPIO
- Maintenance
MSS RTC
- Maintenance

Provide feedback