Plumb getOverlaySupport() into Display Manager for HWUI.

- HWUI can understand if Fp16 for HDR can be supported.

Bug: 242588489
Test: builds
Change-Id: I603ded84a5fbe6142afd167224903cf4010a309f
diff --git a/libs/hwui/DeviceInfo.cpp b/libs/hwui/DeviceInfo.cpp
index f06fa24..0240c86 100644
--- a/libs/hwui/DeviceInfo.cpp
+++ b/libs/hwui/DeviceInfo.cpp
@@ -104,6 +104,10 @@
     }
 }
 
+void DeviceInfo::setSupportFp16ForHdr(bool supportFp16ForHdr) {
+    get()->mSupportFp16ForHdr = supportFp16ForHdr;
+}
+
 void DeviceInfo::onRefreshRateChanged(int64_t vsyncPeriod) {
     mVsyncPeriod = vsyncPeriod;
 }