tree f80460a0850e1b74966cd2ff0e993f4c52fff479
parent 5fac8e3ce4f6cc4d4452c2bfb768b1d573a8dc32
author Timothy Trippel <ttrippel@google.com> 1648070857 -0700
committer Timothy Trippel <5633066+timothytrippel@users.noreply.github.com> 1648097907 -0700

[dif/spi_host] add DIF return code for `dif_spi_host_fifo_read()`

To maintain compliance with the DIF style guide, every DIF should have a
proper return code. This adds such to the `dif_spi_host_fifo_read()`
DIF.

Signed-off-by: Timothy Trippel <ttrippel@google.com>