Use more Rusted Firmware-A (RF-A) crates

[mkroening]

Introducing Rusted Firmware-A (RF-A) - A Rust-Based reimagination of Trusted Firmware-A

Rust Crates

• arm-cci
• arm-ffa
• arm-fvp-base-pac
• arm-generic-timer
• arm-gic
  • using arm-gic to programm the ARM Generic Interrupt Controller #741
• arm-pl011-uart
  • feat(aarch64): Add support for stdin #1894
• arm-pl061
• arm-psci
• arm-sp805
• arm-tzc