After refactoring these scripts in a8c6dcb56e, some platforms are
not setting the enable line correctly.
Regarding the affected platforms, on the 6UL it works because that GPIO
comes enabled by default, but not on the other ones.
For the other platforms refactored, such as the CC91/93 or CCMP25,
it is not needed, as the variable is used directly in the gpioset command.
Signed-off-by: Isaac Hermida <isaac.hermida@digi.com>