Update name of YUV format enum

https://android-review.googlesource.com/#/c/181380/ removes RSYuvFormat
from the RS C++ API header and
https://android-review.googlesource.com/#/c/175567/ adds the same enum
in a slightly different name (RsYuvFormat).  Update CTS to use the
correct name.

Change-Id: I7940acdc4bf234cec2d4d0bbab970d364aa4c4c7
1 file changed