rddrone_fmuk66: fatal error upon running basic samples

[landonh12]

Describe the bug
When attempting to build, flash, and debug the following samples on rddrone_fmuk66:

1. samples/basic/blinky
2. samples/basic/blinky_pwm
3. sampes/hello_world

Zephyr does not supply any console output nor does it control the LEDs as intended.

To Reproduce
Steps to reproduce the behavior:

1. Build one of the samples mentioned above for target rddrone_fmuk66
2. Flash the resulting binary file using west flash
3. Run west debug, continue, and wait approximately 10 seconds, then provide a SIGTRAP (Ctrl+C)
4. Code will break on one of the following:

^C
Program received signal SIGTRAP, Trace/breakpoint trap.
z_fatal_error (reason=0, esf=0x20000fa8 <z_interrupt_stacks+2024>) at /home/landon/git/zephyrproject/zephyr/include/arch/arm/aarch32/asm_inline_gcc.h:56
56		__asm__ volatile(
(gdb) 

^C
Program received signal SIGTRAP, Trace/breakpoint trap.
arch_system_halt (reason=reason@entry=0) at /home/landon/git/zephyrproject/zephyr/kernel/fatal.c:32
32		}

Additional context
Followed the "Getting Started Guide" here: https://docs.zephyrproject.org/latest/getting_started/index.html
Once this was finished, I tried building for the rddrone_fmuk66 first.
This was tried on two different board revisions - RevD and RevE, and the same error occurs.
Other samples were not attempted.
Using a Dell XPS 13 running Ubuntu 20.04 to build.
Versions:

$ cmake --version
cmake version 3.22.2
$ python3 --version
Python 3.8.10
$ dtc --version
Version: DTC 1.5.0