anv: Fix I915_PARAM_HAS_CONTEXT_FREQ_HINT check
What does this MR do and why?
anv: Fix I915_PARAM_HAS_CONTEXT_FREQ_HINT check
When I915_PARAM_HAS_CONTEXT_FREQ_HINT support is not available, kernel
returns -EINVAL instead of false.
Fixes: d52dd5a9
Signed-off-by: Sushma Venkatesh Reddy <sushma.venkatesh.reddy@intel.com>