Build: Fix compile errors due to missing header includes.
Build: Fix compile errors due to missing header includes.

Test with program includes only 'posit' header.

Signed-off-by: ShinYee <bd076606b461da0ed9365f65e4798f407bf12faa@speedgocomputing.com>

stillwater-sc/universal,stillwater-sc/universal,stillwater-sc/universal,stillwater-sc/universal