driver: add measurement of time to PCIe read operation in user-space test.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
4 jobs for driver-formating in 12 minutes and 40 seconds (queued for 9 minutes and 36 seconds)
Status Job ID Name Coverage
  Build
passed #27191
triggered
build_driver

00:00:17

passed #27190
triggered
build_ip_and_tests

00:01:29

passed #27192
triggered
build_linux_driver

00:00:16

 
  Test
passed #27193
triggered
test_ip_fast

00:10:36

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