lm93.sh: Mask out smbus block mode support from i2c-stub

If i2c-stub supports smbus block mode disable it since
we can not use it.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Add module test for emc2103 driver

Signed-off-by: Guenter Roeck <linux@roeck-us.net>