rust: sizes: add constants up to SZ_2G

nova-core will need to use SZ_1M, so make the remaining constants
available.

Reviewed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://lore.kernel.org/r/20250619-nova-frts-v6-5-ecf41ef99252@nvidia.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

Author: Gnurou

rust/kernel/sizes.rs

@@ -24,3 +24,27 @@ pub const SZ_128K: usize = bindings::SZ_128K as usize;
 pub const SZ_256K: usize = bindings::SZ_256K as usize;
 /// 0x00080000
 pub const SZ_512K: usize = bindings::SZ_512K as usize;
+/// 0x00100000
+pub const SZ_1M: usize = bindings::SZ_1M as usize;
+/// 0x00200000
+pub const SZ_2M: usize = bindings::SZ_2M as usize;
+/// 0x00400000
+pub const SZ_4M: usize = bindings::SZ_4M as usize;
+/// 0x00800000
+pub const SZ_8M: usize = bindings::SZ_8M as usize;
+/// 0x01000000
+pub const SZ_16M: usize = bindings::SZ_16M as usize;
+/// 0x02000000
+pub const SZ_32M: usize = bindings::SZ_32M as usize;
+/// 0x04000000
+pub const SZ_64M: usize = bindings::SZ_64M as usize;
+/// 0x08000000
+pub const SZ_128M: usize = bindings::SZ_128M as usize;
+/// 0x10000000
+pub const SZ_256M: usize = bindings::SZ_256M as usize;
+/// 0x20000000
+pub const SZ_512M: usize = bindings::SZ_512M as usize;
+/// 0x40000000
+pub const SZ_1G: usize = bindings::SZ_1G as usize;
+/// 0x80000000
+pub const SZ_2G: usize = bindings::SZ_2G as usize;