lib/nrfx: Upgrade nrfx to master.

glennrub · glennrub · commit 85bde0889da8 · 2019-05-21T17:45:01.000+02:00
Updating the nrfx git submodule containing HAL drivers for nrf-port
from v1.3.1 to current master. The version pointed to is one commit
ahead of v1.7.1 release. The extra commit contains a bugfix for
nrfx_uart_tx_in_progress() making it report correctly.

The general upgrade of nrfx is considered to be safe, as almost all
changes in between 1.3.1 and 1.7.1 are related to peripherals and
target devices not used by the nrf-port as of today.
diff --git a/lib/nrfx b/lib/nrfx
@@ -1 +1 @@
-Subproject commit d4ebe15f58de1442e3eed93b40d13930e7785903
+Subproject commit 7513fc9d5c10dc28b25bf2bb6ff0ba66cb2a3c3d
