Add LAUNCH_MULTI_PANE_SETTINGS_DEEP_LINK permission to Shell

So we can test system APIs in cts.

Bug: 201017875
Test: atest android.settings.cts.SettingsMultiPaneDeepLinkTest
Ignore-AOSP-First: There are merge conflicts.
Change-Id: I8bedd571a4d3385042533fe7dd5ded250894d14a
Merged-In: I8bedd571a4d3385042533fe7dd5ded250894d14a