* origin/pr/2860: (26 commits)
config.pl full: exclude MBEDTLS_CTR_DRBG_USE_128_BIT_KEY
mbedtls_hmac_drbg_set_entropy_len() only matters when reseeding
mbedtls_ctr_drbg_set_entropy_len() only matters when reseeding
mbedtls_ctr_drbg_seed: correct maximum for len
Add a note about CTR_DRBG security strength to config.h
Move MBEDTLS_CTR_DRBG_USE_128_BIT_KEY to the correct section
CTR_DRBG: more consistent formatting and wording
CTR_DRBG documentation: further wording improvements
CTR_DRBG: Improve the explanation of security strength
CTR_DRBG: make it easier to understand the security strength
HMAC_DRBG: note that the initial seeding grabs entropy for the nonce
Use standard terminology to describe the personalization string
Do note that xxx_drbg_random functions reseed with PR enabled
Consistently use \c NULL and \c 0
Also mention HMAC_DRBG in the changelog entry
HMAC_DRBG: improve the documentation of the entropy length
HMAC_DRBG documentation improvements clarifications
More CTR_DRBG documentation improvements and clarifications
Fix wording
Remove warning that the previous expanded discussion has obsoleted
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