Use translucent pixel format for CardView

CardView was reporting its opacity as OPAQUE which is not
true because it does not fill all of its rectangular
bounds. This CL replaces it with TRANSLUCENT.

Bug: 18467258
Change-Id: I350958ffa7f11fd1614c37ac7148df06f0dd9c98
(cherry picked from commit ad124ea5fa71f1b675c9c42b858adfbc42093d37)
2 files changed