frameworks/base: Swap width and height of temporary buffer only with

orientation change

Current code swaps the width and height by assuming that aspect
ratio of the buffer width and height will be same as that of the
layout clip width and height. That is not always true.
Change the check to orientation change.

Change-Id: Ie387f3a7369025427484e4173cbde7a08df2b9d7

services/surfaceflinger/LayerBuffer.cpp

@@ -540,7 +540,7 @@ status_t LayerBuffer::BufferSource::initTempBuffer() const
     const ISurface::BufferHeap& buffers(mBufferHeap);
     uint32_t w = mLayer.mTransformedBounds.width();
     uint32_t h = mLayer.mTransformedBounds.height();
-    if (buffers.w * h != buffers.h * w) {
+    if (mLayer.getOrientation() & (Transform::ROT_90 | Transform::ROT_270)) {
         int t = w; w = h; h = t;
     }