libhwc2.1: set src and dst ExynosImage to get correct scaling/rot amount

HWC needs to call setExynosImage() to ensure the correct scaling
rotation calculation.

Bug: 191421040
Test: test multiple scaling/rotation layers by hwc-tester
Change-Id: I286f74592889f57f0ec9e603efb99ee1d9381887
1 file changed