On Google’s site they only mention two of them:
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
this way you will get ads from the area(country) where the device is located
If you enable these permissions then this allows admob to geo-target your ads.
Of course, the only reason to declare:
<uses-permission android:name="android.permission.ACCESS_MOCK_LOCATION" />
is because you want to try out different locations during development. You don't need this permission when your app is released.
it may help someone
You should never request location permissions from users for the sole purpose of advertising.
https://support.google.com/admob/answer/6373176?hl=en