...to catch new places where defined'ness of OSL_BIG/LITENDIAN would be checked
without osl/endian.h being included; cf.
e2f08f9d "connectivity, sc: add missing #include
<osl/endian.h>" and 2b14fb3a "cppcanvas, oox:
add missing #include <osl/endian.h>".

Change-Id: I167c8916a01391b7dacad7325153ccf35d3ba9dc