Update softdevices.txt

Author: BurlakovSG

softdevices.txt

@@ -6,5 +6,5 @@ s110.filename=s110_nrf51_8.0.0_softdevice.hex
 s130.url=http://www.nordicsemi.com/eng/content/download/95150/1606929/file/s130_nrf51_2.0.0.zip
 s130.filename=s130_nrf51_2.0.1_softdevice.hex
 
-s132.url=http://www.nordicsemi.com/eng/content/download/95151/1606944/file/s132_nrf52_2.0.0.zip
-s132.filename=s132_nrf52_2.0.1_softdevice.hex
+s132.url=http://www.nordicsemi.com/eng/nordic/download_resource/58987/13/75982101/116068
+s132.filename=s132_nrf52_5.1.0_softdevice.hex