libseccomp: fix ptest failures.

Fixes:
BusyBox v1.32.0 () multi-call binary.
Usage: dd [if=FILE] [of=FILE] [bs=N] [count=N] [skip=N]

Don't use Busybox dd, not compatable. Use coreutils

Signed-off-by: Armin Kuster <akuster808@gmail.com>

recipes-security/libseccomp/libseccomp_2.5.0.bb

@@ -45,4 +45,4 @@ do_install_ptest() {
 FILES_${PN} = "${bindir} ${libdir}/${BPN}.so*"
 FILES_${PN}-dbg += "${libdir}/${PN}/tests/.debug/* ${libdir}/${PN}/tools/.debug"
 
-RDEPENDS_${PN}-ptest = "bash"
+RDEPENDS_${PN}-ptest = "coreutils bash"