Popen communication returns bytestrings. It is necessary to perform
decode on these strings before passing them to the EdkLogger that
works with ordinary strings.
Signed-off-by: Konstantin Aladyshev <aladyshev22@gmail.com>
Reviewed-by: Liming Gao <gaoliming@byosoft.com.cn>
Reviewed-by: Bob Feng <bob.c.feng@intel.com>
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