sparc: add waitfd to 32 bit system call tables

sparc: add waitfd to 32 bit system call tables

Orabug: 21685254

When the waitfd system call was added to UEK, it was only added to the
64 bit system call table.  As a result, you can not add a new system
call to the end of the 32 and 64 bit system call tables as they will
not have the same system call number.

Add waitfd to the 32 bit system call tables, so that a new system call
can be added to all tables.

Fixes: 91352d1f (dtrace: add support for sparc64 1of3)
Signed-off-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Kris Van Hees <kris.van.hees@oracle.com>
Signed-off-by: Dhaval Giani <dhaval.giani@oracle.com>