Use MLPREFIX to fix:
| cat: /path/to/sysroots/lib32-qemux86-64/sysroot-providers/virtual_libc: No such file or directory
[YOCTO #7924]
(From OE-Core rev: db9d76a5560d3001abe76518f47da1dfba8c0c7f)
Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>