Make gck attribute value allocation aligned for 64bit systems
Fixes several issues on 64bit SPARC system where process was getting SIGBUS due accessing ulong on not aligned memory (_gck_format_attributes, gck_value_to_ulong, test_init_ulong).
Fixes several issues on 64bit SPARC system where process was getting SIGBUS due accessing ulong on not aligned memory (_gck_format_attributes, gck_value_to_ulong, test_init_ulong).