i2cdump: Add range support with mode i (I2C block)

Implementing range support for I2C block read (mode i) isn't
particularly difficult so let's just do that.

Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
2 files changed