1. bluedroid: use standard function pointer define.
2. blufi: Change ESP_BD_ADDR_LEN into ESP_BLUFI_BD_ADDR_LEN
3. doc/sphinx_known_warnings: Remove fixed parts.
1) Fix build issue in mbedtls
2) skip the public headers check in IDF
3)Update Kconfig Macros
4)Remove deprecated config options
5) Update the sha API according to new nomenclature
6) Update mbedtls_rsa_init usage
7) Include mbedtls/build_info.h instead of mbedtls/config.h
8) Dont include check_config.h
9) Add additional error message in esp_blufi_api.h
