#0: Fix NCRISC delay

[jbaumanTT]

What's changed

The current KERNEL_RUN_TIME code was ignoring end_time and instead delaying an arbitrary amount. Instead match the code for other kernels and wait for the correct amount of time.

Checklist

• Post commit CI passes
• Blackhole Post commit (if applicable)
• Model regression CI testing passes (if applicable)
• Device performance regression CI testing passes (if applicable)
• (For models and ops writers) Full new models tests passes
• New/Existing tests provide coverage for changes