Cherry-pick Fujitsu driver to merge into stable/capri branch

[leonwanghui]

What this PR does / why we need it:

Which issue this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close that issue when PR gets merged): fixes #

Special notes for your reviewer:
@xing-yang PTAL

Release note:

[codecov]

Codecov Report

Merging #942 into stable/capri will increase coverage by 2.2%.
The diff coverage is 63.66%.

@@              Coverage Diff               @@
##           stable/capri    #942     +/-   ##
==============================================
+ Coverage          31.2%   33.4%   +2.2%     
==============================================
  Files                82      85      +3     
  Lines             15216   16325   +1109     
==============================================
+ Hits               4748    5454    +706     
- Misses             9764   10091    +327     
- Partials            704     780     +76

Impacted Files	Coverage Δ
contrib/drivers/drivers.go	28.37% <0%> (-2.06%)	⬇️
contrib/drivers/fujitsu/eternus/common.go	100% <100%> (ø)
contrib/drivers/fujitsu/eternus/eternus.go	49.37% <49.37%> (ø)
contrib/drivers/fujitsu/eternus/client.go	70.5% <70.5%> (ø)

[leonwanghui]

Close it due to duplicated with #943

[xing-yang]

@leonwanghui by the way, this should only cherry pick the first two original commits, not the third merge commit.