nv50: enable texture compression

Compression seems to be supported for only some formats. Enable it for those. Previously this was disabled for everything despite the code looking like it was actually enabled.

1f8c0be nv50: enable texture compression

src/gallium/drivers/nouveau/nv50/nv50_miptree.c | 22 +++++++++++++++++++---

src/gallium/drivers/nouveau/nv50/nv50_screen.c | 7 +++++++

2 files changed, 26 insertions(+), 3 deletions(-)

Upstream: cgit.freedesktop.org