anv: Set correct fast clear value for depth during blorp operation

anv: Set correct fast clear value for depth during blorp operation

Previously, on the platforms which support the indirect clear color
values, we were just setting the clear color address and not enforcing
any clear color values but some of the blorp operations were using the
wrong fast clear value.

With this patch, we make sure to set the correct fast clear color value
during blorp operations.

Signed-off-by: Sagar Ghuge <sagar.ghuge@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9941>