fix: i2c: extend i2c help message to be more informative

	extend 'i2c' command help message to be more informative
	regarding the arguements:
	- address.[.0, .2] = Address length [byte, 2byte]
	- xx.[.b, .w, .l]  = Returned Data length [byte, 2byte, 4byte]

	* JIRA SYSTEMSW565 *

Change-Id: Ic84a8e8511653d03a7f6f3a61c7bfd2d6ab24b2d
Signed-off-by: Omri Itach <omrii@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/18705
Tested-by: Star_Automation <star@marvell.com>
Reviewed-by: Hanna Hawa <hannah@marvell.com>
1 file changed