Fix compressed texture loads for non-minimal pitches again

My commit eea6a7639f767b1d30b6ef1f91a9c49e3f3b78f0 does a memcpy of height
lines, but that's wrong because the texture has a block layout and we
must thus use the number of vertical blocks instead of the height.

Signed-off-by: Brian Paul <brianp@vmware.com>
1 file changed