boards/shields: sparkfun_sara_r4: enable SARA_R4_NET_STATUS

There is a blue LED used to display connectivity for the SparkFun
SARA-R4 shield.  This LED is connected to the modem via GPIO 16
which is the default used by SARA-R4 driver when
CONFIG_MODEM_UBLOX_SARA_R4_NET_STATUS is enabled.

Signed-off-by: Michael Scott <mike@foundries.io>
1 file changed