Revert "unittests: Remove __wrap logic"

Revert "unittests: Remove __wrap logic" to mock execvp funcion for
cbi_unittest.

This reverts commit 76f93245a0755a0be5da81754c1cf59ade9d8c52.

BUG=b:348095503
TEST=emrege-geralt mosys

Change-Id: I3ccc31fc37b15b89f666b31bcf7f5189ce1b9b26
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/mosys/+/5804428
Reviewed-by: Yu-Ping Wu <[email protected]>
Tested-by: Yidi Lin <[email protected]>
Reviewed-by: Jack Rosenthal <[email protected]>
Commit-Queue: Yidi Lin <[email protected]>
1 file changed