Issue title: [Bug] "Add From Gallery" no longer visible on Amazon Build Flavor
 Issue body: Cause: 6d68424cd48ab0a702da949bd49a70eeb05f0dfd

Even though we can't use the camera, we can still use the gallery, which is contained in the "Add Image" screen

The "add image" permission is requested:

https://github.com/ankidroid/Anki-Android/blob/c84cf4b151cfe460fd820d4cdf90c5daec4f43e1/AnkiDroid/src/main/java/com/ichi2/anki/NoteEditor.java#L1566-L1570
 Comments: 
 Comment 0: Cause: 6d68424cd48ab0a702da949bd49a70eeb05f0dfd

Even though we can't use the camera, we can still use the gallery.
 Comment 1: so, i understand that "add image" must be visible, but what do you exactly want?
obviously, if I comment these lines, add image will work properly(without a camera)
would you please give some hints?
 Comment 2: The permission check should be removed from that spot and put into a more specific spot.

It appears that for amazon builds (that is, if camera permission is not in the android manifest), this view should not be added https://github.com/ankidroid/Anki-Android/blob/39a226842004e9f329304bd227fee9bace7d5f37/AnkiDroid/src/main/java/com/ichi2/anki/multimediacard/fields/BasicImageFieldController.java#L183

And the permission check for camera here should be avoided https://github.com/ankidroid/Anki-Android/blob/39a226842004e9f329304bd227fee9bace7d5f37/AnkiDroid/src/main/java/com/ichi2/anki/multimediacard/activity/MultimediaEditFieldActivity.java#L146-L152

 Comment 3: I'm willing to work on this!
 Comment 4: @huenical I just reviewed the PR and it looks pretty good pending test results, in general it appears that @yasin459 was working on this already and you did not wait to see their response or any one else's response. Your solution appears good but by jumping in front of @yasin459 the collaboration is a little bit lacking. In the absence of confirmation that an issue really has no pending effort, please look for issues that are *definitely* not taken up by people so we don't duplicate effort unnecessarily, there is certainly plenty to do :-)
 Comment 5: Thank you for pointing this out.
Sorry for any inconvenience caused @yasin459 
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