rust: pci: use c_* types via kernel prelude
Update PCI FFI callback signatures to use `c_` from the prelude,
instead of accessing it via `kernel::ffi::`.
Signed-off-by: Abhinav Ananthu <abhinav.ogl@gmail.com>
Reviewed-by: Benno Lossin <lossin@kernel.org>
Link: https://lore.kernel.org/r/20250812033101.5257-1-abhinav.ogl@gmail.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
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