[Mapbox] Starbucks app crashes

Reproduce:

1. Open starbucks
2. Go to stores
3. Wait a few seconds

FATAL EXCEPTION: androidmapsapi-ula-1
Process: com.starbucks.mobilecard, PID: 18881
java.lang.NullPointerException: Attempt to invoke virtual method 'byte[] com.google.android.gms.common.internal.CertData.getBytes()' on a null object reference
	at com.google.android.gms.common.GoogleCertificatesImpl.isGoogleOrPlatformSigned(GoogleCertificatesImpl.java:58)
	at com.google.android.gms.common.internal.IGoogleCertificatesApi$Stub.onTransact(IGoogleCertificatesApi.java:98)
	at android.os.Binder.transact(Binder.java:667)
	at com.google.android.m4b.maps.c.a.a(:10)
	at com.google.android.m4b.maps.m.au.a(:6)
	at com.google.android.m4b.maps.h.i.a(:30)
	at com.google.android.m4b.maps.h.i.a(:22)
	at com.google.android.m4b.maps.h.u.a(:34)
	at com.google.android.m4b.maps.h.u.a(:19)
	at com.google.android.m4b.maps.bo.ep.a(:110)
	at com.google.android.m4b.maps.bo.et.a(:4)
	at com.google.android.m4b.maps.bo.er.run(:25)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
	at java.lang.Thread.run(Thread.java:764)

Start by reproducing the crash in the Starbucks app by opening Stores and waiting, then trace the reported path through GoogleCertificatesImpl.isGoogleOrPlatformSigned and the com.google.android.m4b.maps stack. Confirm the relevant GmsCore implementation and test setup before making changes; done means the Stores view no longer crashes.