Webdriver: Fix support on touchId documentation (#3374)

Change touch_id and toggle_touch_id_enrollment to ios

## Proposed changes

Change touch_id and toggle_touch_id_enrollment to ios

## Types of changes

- [x] Documentation fix

## Checklist

[//]: # (_Put an `x` in the boxes that apply. You can also fill these out after creating the PR. If you're unsure about any of them, don't hesitate to ask. We're here to help! This is simply a reminder of what we are going to look for before merging your code._)

- [x] I have read the [CONTRIBUTING](https://github.com/webdriverio/webdriverio/blob/master/CONTRIBUTING.md) doc
- [x] I have added necessary documentation (if appropriate)

### Reviewers: @webdriverio/technical-committee

packages/webdriver/protocol/appium.json

@@ -666,7 +666,7 @@
         "required": true
       }],
       "support": {
-        "android": {
+        "ios": {
           "XCUITest": "9.3+"
         }
       }
@@ -684,7 +684,7 @@
         "default": true
       }],
       "support": {
-        "android": {
+        "ios": {
           "XCUITest": "9.3+"
         }
       }