interfaces: fix copy-pasted iio vs io in io-ports-control

[zyga]

The io-ports-control interface is unrelated to iio but has some
(probably) copy-pasted definitions. This patch just replaces iio with io
in the affected file.

Signed-off-by: Zygmunt Krynicki zygmunt.krynicki@canonical.com

[stolowski]

+1

[codecov-io]

Codecov Report

Merging #3566 into master will increase coverage by <.01%.
The diff coverage is 80%.

@@            Coverage Diff            @@
##           master   #3566      +/-   ##
=========================================
+ Coverage   76.79%   76.8%   +<.01%     
=========================================
  Files         379     379              
  Lines       26285   26285              
=========================================
+ Hits        20185   20187       +2     
+ Misses       4306    4305       -1     
+ Partials     1794    1793       -1

Impacted Files	Coverage Δ
interfaces/builtin/io_ports_control.go	77.77% <80%> (ø)	⬆️
cmd/snap/cmd_aliases.go	94% <0%> (-2%)	⬇️
overlord/ifacestate/helpers.go	65.54% <0%> (ø)	⬆️
overlord/snapstate/snapstate.go	81.52% <0%> (+0.23%)	⬆️
interfaces/sorting.go	96.66% <0%> (+3.33%)	⬆️

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