cameraservice_test: Add ZoomRatioTest to the host build.

ZoomRatioTest requires getArrayWidthAndHeight, which has been added in
this patch to SessionConfigurationUtilsHost.cpp.

Bug: 207411352
Test: Ran test on gLinux.
Change-Id: Ie1cd954cc49ab0f3bb80bd2fbe82397689c25dd2
diff --git a/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp b/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp
index 7ec0956..27b00c9 100644
--- a/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp
+++ b/services/camera/libcameraservice/device3/ZoomRatioMapper.cpp
@@ -20,7 +20,7 @@
 #include <algorithm>
 
 #include "device3/ZoomRatioMapper.h"
-#include "utils/SessionConfigurationUtils.h"
+#include "utils/SessionConfigurationUtilsHost.h"
 
 namespace android {