Camera: raise the max zoom cap to 7.0

Change-Id: I3d826ab0e16a3369ae397f3dc3ce45ee894f0416
diff --git a/msm8998/QCamera2/HAL3/QCamera3HWI.cpp b/msm8998/QCamera2/HAL3/QCamera3HWI.cpp
index e670405..60e51f4 100644
--- a/msm8998/QCamera2/HAL3/QCamera3HWI.cpp
+++ b/msm8998/QCamera2/HAL3/QCamera3HWI.cpp
@@ -131,7 +131,7 @@
 #define TOTAL_LANDMARK_INDICES 6
 
 // Max preferred zoom
-#define MAX_PREFERRED_ZOOM_RATIO 5.0
+#define MAX_PREFERRED_ZOOM_RATIO 7.0
 
 cam_capability_t *gCamCapability[MM_CAMERA_MAX_NUM_SENSORS];
 const camera_metadata_t *gStaticMetadata[MM_CAMERA_MAX_NUM_SENSORS];