add test case for restart_dm

Author: dyzheng

tests/03_NAO_multik/02_NO_KP_15/INPUT

@@ -4,7 +4,7 @@ suffix			autotest
 calculation     scf
 
 nbands			6
-symmetry		1
+symmetry		0
 pseudo_dir	../../PP_ORB
 orbital_dir	../../PP_ORB
 gamma_only      0
@@ -21,6 +21,9 @@ basis_type		lcao
 #Parameters (4.Smearing)
 smearing_method		gauss
 smearing_sigma			0.002
+init_chg                dm
+#out_dmr                  1
+read_file_dir           ./
 
 #Parameters (5.Mixing)
 mixing_type		broyden