nilrtdiskcrypt: cleanup recipe
nilrtdiskcrypt: cleanup recipe

Make the default ${PN} package gobble all files which are not
explicitely pulled in by other packages.

Signed-off-by: Ioan-Adrian Ratiu <7ec73abcfe099fc5574c01312b62768070c80980@ni.com>
Natinst-Rally-ID: F12416
Natinst-ReviewBoard-ID: 205378

ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt,ni/meta-nilrt