Another set of missing consts

modules/gui/qt4/pixmaps/advanced.xpm

 /* XPM */
-static char * advanced_xpm[] = {
+static const char *const advanced_xpm[] = {
 "16 16 106 2",
 "  	c None",
 ". 	c #AEAEBE",

modules/gui/qt4/pixmaps/audio.xpm

 /* XPM */
-static char * audio_xpm[] = {
+static const char *const audio_xpm[] = {
 "16 16 83 1",
 " 	c None",
 ".	c #00E000",

modules/gui/qt4/pixmaps/codec.xpm

 /* XPM */
-static char * codec_xpm[] = {
+static const char *const codec_xpm[] = {
 "16 16 132 2",
 "  	c None",
 ". 	c #131313",

modules/gui/qt4/pixmaps/intf.xpm

 /* XPM */
-static char * intf_xpm[] = {
+static const char *const intf_xpm[] = {
 "16 16 216 2",
 "  	c None",
 ". 	c #715F39",

modules/gui/qt4/pixmaps/type_card.xpm

 /* XPM */
-static char * type_card_xpm[] = {
+static const char *const type_card_xpm[] = {
 "16 16 174 2",
 "  	c #FFFFFF",
 ". 	c #E7E7E7",

modules/gui/qt4/pixmaps/type_cdda.xpm

 /* XPM */
-static char * type_cdda_xpm[] = {
+static const char *const type_cdda_xpm[] = {
 "16 16 119 2",
 "  	c None",
 ". 	c #7E7E7E",

modules/gui/qt4/pixmaps/type_directory.xpm

 /* XPM */
-static char * type_directory_xpm[] = {
+static const char *const type_directory_xpm[] = {
 "16 16 83 1",
 " 	c None",
 ".	c #3274DB",

modules/gui/qt4/pixmaps/type_disc.xpm

 /* XPM */
-static char * type_disc_xpm[] = {
+static const char *const type_disc_xpm[] = {
 "16 16 91 1",
 " 	c None",
 ".	c #676767",

modules/gui/qt4/pixmaps/type_file.xpm

 /* XPM */
-static char * type_file_xpm[] = {
+static const char *const type_file_xpm[] = {
 "16 16 108 2",
 "  	c None",
 ". 	c #8F8F8F",

modules/gui/qt4/pixmaps/type_net.xpm

 /* XPM */
-static char * type_net_xpm[] = {
+static const char *const type_net_xpm[] = {
 "16 16 154 2",
 "  	c None",
 ". 	c #667AAC",

modules/gui/qt4/pixmaps/type_node.xpm

 /* XPM */
-static char * type_node_xpm[] = {
+static const char *const type_node_xpm[] = {
 "16 16 55 1",
 " 	c None",
 ".	c #949494",

modules/gui/qt4/pixmaps/type_playlist.xpm

 /* XPM */
-static char * type_playlist_xpm[] = {
+static const char *const type_playlist_xpm[] = {
 "16 16 126 2",
 "  	c None",
 ". 	c #959695",

modules/gui/qt4/pixmaps/type_unknown.xpm

 /* XPM */
-static char * type_unknown_xpm[] = {
+static const char *const type_unknown_xpm[] = {
 "16 16 4 1",
 " 	c None",
 ".	c #FFFFFF",

modules/gui/qt4/pixmaps/video.xpm

 /* XPM */
-static char * video_xpm[] = {
+static const char *const video_xpm[] = {
 "16 16 124 2",
 "  	c None",
 ". 	c #FFFFFF",