bug#45172: fiano-fmap test failure

[Jack Hill <jackhill@jackhill.us>]

Hi Guix,

fiano-fmap fails to build with a test failure. I'm using guix 
937bc5841429f40a64e6b25d5d4c2fe3276789f1. The log from the check phase is:

"""
starting phase `check'
# github.com/linuxboot/fiano/cmds/fmap
package github.com/linuxboot/fiano/cmds/fmap (test)
 	imports github.com/u-root/u-root/pkg/testutil: cannot find package "github.com/u-root/u-root/pkg/testutil" in any of:
 	/tmp/guix-build-fiano-fmap-5.0.0.drv-0/src/github.com/linuxboot/fiano/vendor/github.com/u-root/u-root/pkg/testutil (vendor tree)
 	/gnu/store/cb9kqjg7m6xk1wz7ap8as792fd5kcmd2-go-1.14.10/src/github.com/u-root/u-root/pkg/testutil (from $GOROOT)
 	/tmp/guix-build-fiano-fmap-5.0.0.drv-0/src/github.com/u-root/u-root/pkg/testutil (from $GOPATH)
FAIL	github.com/linuxboot/fiano/cmds/fmap [setup failed]
FAIL
command "go" "test" "github.com/linuxboot/fiano/cmds/fmap" failed with status 1

Some deprecated features have been used.  Set the environment
variable GUILE_WARN_DEPRECATED to "detailed" and rerun the
program to get more information.  Set it to "no" to suppress
this message.
builder for `/gnu/store/zqd7flscj1x4922vhp6y5nnkgsgs5zsm-fiano-fmap-5.0.0.drv' failed with exit code 1
"""

Best,
Jack