libext2fs: make sure ismounted.c explicitly pulls in <sys/types.h>

The major() cpp macro is defined as requiring sys/types.h to be
included with _BSD_SOURCE defined.  However, in older glibc's this
hasn't been strictly required and the stdlib.h header file included
sys/types.h implicitly.  Fix this so that more aggressive
distributions run into build errors.

Signed-off-by: Theodore Ts'o <tytso@mit.edu>

in with andchanges. Lines starting
1 file changed