Merge branch 'bugfix/spi_flash_large_writes' into 'master'

spi_flash: Fix large writes, unaligned writes, and writes from flash

See merge request !843

diff --cc components/log/include/esp_log.h
index b760dfe614465946844125de6a911c962f92fa1c,928fb49051760a939a729ef62f050a0b51e31dad..b3918a93ff54fe4d0986166249b53e6a8741923c
--- 1/components/log/include/esp_log.h
--- 2/components/log/include/esp_log.h
+++ b/components/log/include/esp_log.h
@@@ -114,10 -114,10 +114,10 @@@ void esp_log_buffer_hex(const char *tag
   *
   * @param  buffer   Pointer to the buffer array
   *
-  * @param  buff_len length of buffer
+  * @param  buff_len length of buffer in bytes
   *
   */
 -void esp_log_buffer_char(const char *tag, const char *buffer, uint16_t buff_len);
 +void esp_log_buffer_char(const char *tag, const void *buffer, uint16_t buff_len);
  
  #if CONFIG_LOG_COLORS
  #define LOG_COLOR_BLACK   "30"