powerstats: expose display MRR state residency data provider

Bug: 321848496
Test: vts-tradefed run vts -m VtsHalPowerStatsTargetTest
Change-Id: I967210bef1d33d8bc344ea80e6c31f70a3414604
Signed-off-by: Darren Hsu <darrenhsu@google.com>
diff --git a/powerstats/include/Gs101CommonDataProviders.h b/powerstats/include/Gs101CommonDataProviders.h
index 98e6953..469d514 100644
--- a/powerstats/include/Gs101CommonDataProviders.h
+++ b/powerstats/include/Gs101CommonDataProviders.h
@@ -22,4 +22,5 @@
 
 void addGs101CommonDataProviders(std::shared_ptr<PowerStats> p);
 
+void addDisplayMrr(std::shared_ptr<PowerStats> p);
 void addNFC(std::shared_ptr<PowerStats> p, const std::string& path);