pkgdep: Don't built intel-ipsec-mb as root

This leaves files created by the root user in the directory and
makes future calls to make clean fail.

Change-Id: Ie33d0d33e8c01a2d17f6991284c5118b5bd545ff
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/429282
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>

scripts/pkgdep.sh

@@ -92,7 +92,7 @@ else
 		ipsec_submodule_cloned="$(find $rootdir/intel-ipsec-mb -name intel-ipsec-mb.h 2>/dev/null)"
 		if [ "$ipsec_submodule_cloned" != "" ]; then
 			cd $rootdir/intel-ipsec-mb
-			make
+			su - $SUDO_USER -c 'make'
 			make install
 			cd -
 		else