nrf: Add support for reading output pin state

Current adoption on top of nrfx only reads the GPIO->IN register.
In order to read back an output state, nrf_gpio_pin_out_read has
to be called.

This patch concatinate the two read functions such that, if
either IN or OUT register has a value 1 it will return this,
else 0.

Updating lib/nrfx submodule to latest version of master to get
the new GPIO API to read pin direction.
(nrfx: d37b16f2b894b0928395f6f56ca741287a31a244)

1 files changed, 0 insertions, 0 deletions

diff --git a/lib/nrfx b/lib/nrfx
-Subproject cf78ebfea1719d85cf4018fe6c08cc73fe5ec71
+Subproject d37b16f2b894b0928395f6f56ca741287a31a24