CSMA/CA helper compile configurations

Detailed Description

Macros
#define	CONFIG_CSMA_SENDER_MIN_BE_DEFAULT   (3U)
	Default Minimal CSMA/CA Backoff Exponent.
#define	CONFIG_CSMA_SENDER_MAX_BE_DEFAULT   (5U)
	Default Maximal CSMA/CA Backoff Exponent.
#define	CONFIG_CSMA_SENDER_MAX_BACKOFFS_DEFAULT   (4U)
	Default Maximal number of retries for sending a given packet with the CSMA/CA method.
#define	CONFIG_CSMA_SENDER_BACKOFF_PERIOD_UNIT   (320U)
	CSMA/CA backoff period, in microseconds.