rk_mkdir() should not be redefined to mkdir() nor should mkdir()
be redefined to rk_mkdir() when compiling lib/roken/mkdir.c
Change-Id: I329fd2eb5794548635d33218a65df8958746a6f9
Although rk_mkdir can be provided on all platforms there is no
reason to require that it be used by unconditionally mapping
mkdir -> rk_mkdir
Change-Id: Ic149500037abf446434332bf6ba67dfb3906cd72
The Windows version of mkdir() does not share the same signature
as the POSIX version. Add rk_mkdir() with an POSIX compliant signature
to libroken. The current implementation ignores the 'mode' parameter
on Windows but a future implementation could provide the required
functionality with native Win32 APIs.
Change-Id: I084d42e0f27932e9b8131d310dbf34849f5fe4b6