fix(VTimePicker): fix disabled props

[SonTT19]

Description

Actual Behavior
When using disabled props, only style changed, VTimePicker can still be interacted https://play.vuetifyjs.com/#eNqVUMFOwzAM/RUr4gDS2t6rMmkfwYlyCImHAmkSJU5hmvrvuInKQNqBXSK/5+fn+D2fRYqqO4TQzhlFLwbCKVhJuB8dwDA30X+CtObNPY5CoSOMo4D3nMgcT0ylIBU2Mvrs9CjKUBkjM2ETjPrACHMzeY2W1ZVgA22SfLWo90P3R/tvg6Sit3b1uM2rcnDFcuv0VjqdlAzIzTtOZb205SUcy6lN08Hpp3CRb9srvvqHleMYuR66X/Ey5CtMoCLCr+AjgcajzJbgXP20JHn/sCGAiJSju2CAuqcHl63dbfRSi6UQDIbuZ5NYdkW6Pi/f6kepuA==

Expected Behavior
Can not interact with VTimePicker when using disabled

Markup:

<template>
  <v-row
    align="center"
    justify="space-around"
  >
    <v-time-picker
      v-model="picker"
      disabled
      scrollable
    ></v-time-picker>
    <v-time-picker
      v-model="picker"
      scrollable
    ></v-time-picker>
    <v-time-picker
      v-model="picker"
      :landscape="$vuetify.display.smAndUp"
      disabled
    ></v-time-picker>
  </v-row>
</template>

<script>
  export default {
    data () {
      return {
        picker: null,
      }
    },
  }
</script>