[roll pigweed] pw_sync_freertos: Update InterruptSpinLock docs

Small update for InterruptSpinLock clarifying that InterruptSpinLock
cannot be used in interrupts with priority above
configMAX_SYSCALL_INTERRUPT_PRIORITY.

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/108091

https://pigweed.googlesource.com/pigweed/pigweed
pigweed Rolled-Commits: 050540515c8067c..366513d44688d64
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Change-Id: Ia93edc2153bc466d9aa216d186865b06c943d2f5
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/zephyr-integration/+/108134
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1 file changed
tree: 63d5feda909dc56ad7fde27d47443bc10414d886
  1. .gitmodules
  2. test.sh