Move NIST Statistical Test Suite (nist-sts) testing module from testing/drivers/
into testing/drivers/rng/ directory to better organize RNG (random number generator)
related tests that utilize /dev/random device.
Changes:
- Create testing/drivers/rng/ directory structure
- Move nist-sts from testing/drivers/ to testing/drivers/rng/nist-sts
- Update build configuration file paths:
- CMakeLists.txt
- Makefile
- Make.defs
- Maintain all test patches and Kconfig settings
Signed-off-by: makejian <makejian@xiaomi.com>