gpu: nova-core: gsp: remove useless conversion

gpu: nova-core: gsp: remove useless conversion

[ Upstream commit 87990025b87283f1b8c50d4d75379ca6d86d2211 ]

Because nova-core depends on CONFIG_64BIT and a raw DmaAddress is
always a u64, we can remove the now actually useless conversion.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Reviewed-by: John Hubbard <jhubbard@nvidia.com>
[acourbot@nvidia.com: reword commit as suggested by John.]
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20250926130623.61316-1-dakr@kernel.org>
Stable-dep-of: f7a33a67c50c ("gpu: nova-core: gsp: do not unwrap() SGEntry")
Signed-off-by: Sasha Levin <sashal@kernel.org>