md-autocomplete panel doesn't inherit dark theme

[rudzikdawid]

screen of issue:

in material1 implementation there is render issue. light autocomplete panel in dark theme.
material2 has proper implementation dark autocomplete panel in dark theme.
https://material.angular.io/components/autocomplete/examples

automplete in dark theme should look like:

PR: #11203
fixed scss styles:

md-autocomplete.md-THEME_NAME-theme {
  background: '{{background-hue-1}}';
  &[disabled]:not([md-floating-label]) {
    background: '{{background-hue-2}}';

 input {
    color: '{{foreground-1}}';
  }
}


.md-autocomplete-suggestions-container.md-THEME_NAME-theme {
  background: '{{background-hue-1}}';
  li {
    color: '{{foreground-1}}';
    
    &:hover,
    &.selected {
      background: '{{background-300-0.2}}';
    }

  }
}