Change `inl()` return type from `unsigned long` to `unsigned int` to match the function definition and ensure consistency across platforms. BUG=b:242829490 TEST=Compiled successfully in 32-bit and 64-bit modes. Change-Id: I681935665c8de9ee472ab72fe1ac2f5dcc0f2534 Signed-off-by: Subrata Banik <subratabanik@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/81961 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-by: Dinesh Gehlot <digehlot@google.com>