HWC: Fix for use int reference in function call

To use the integer reference, declared integer
variable to get value directly in that variable.

Change-Id: I1fd1a45580be99dd95ccbc3495e28455a4c7de23
diff --git a/libhwcomposer/hwc_utils.cpp b/libhwcomposer/hwc_utils.cpp
index eed6e9d..216e83a 100644
--- a/libhwcomposer/hwc_utils.cpp
+++ b/libhwcomposer/hwc_utils.cpp
@@ -310,12 +310,12 @@
     float xRatio = 1.0;
     float yRatio = 1.0;
 
-    float fbWidth = ctx->dpyAttr[dpy].xres;
-    float fbHeight = ctx->dpyAttr[dpy].yres;
+    int fbWidth = ctx->dpyAttr[dpy].xres;
+    int fbHeight = ctx->dpyAttr[dpy].yres;
     if(ctx->dpyAttr[dpy].mDownScaleMode) {
         // if downscale Mode is enabled for external, need to query
         // the actual width and height, as that is the physical w & h
-        ctx->mExtDisplay->getAttributes((int&)fbWidth, (int&)fbHeight);
+         ctx->mExtDisplay->getAttributes(fbWidth, fbHeight);
     }
 
 
@@ -328,7 +328,7 @@
     float asX = 0;
     float asY = 0;
     float asW = fbWidth;
-    float asH= fbHeight;
+    float asH = fbHeight;
 
     // based on the action safe ratio, get the Action safe rectangle
     asW = fbWidth * (1.0f -  asWidthRatio / 100.0f);