ext: hal: nordic: Update nrfx to version 1.3.1

Updates nrfx to the recently released version that corrects a few
imperfections in NFCT and USBD drivers.

Origin: nrfx
License: BSD 3-Clause
URL: https://github.com/NordicSemiconductor/nrfx/tree/v1.3.1


commit: d4ebe15f58de1442e3eed93b40d13930e7785903
Purpose: Provide peripheral drivers for Nordic SoCs
Maintained-by: External

Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>