Some const fixes.

coreapi/linphonecore.c

@@ -4142,7 +4142,7 @@ const char**  linphone_core_get_video_devices(const LinphoneCore *lc){
 	return lc->video_conf.cams;
 }
 
-const bctbx_list_t * linphone_core_get_sound_devices_list(LinphoneCore *lc){
+bctbx_list_t * linphone_core_get_sound_devices_list(const LinphoneCore *lc){
 	bctbx_list_t *cards_list = NULL;
 	const char** cards = lc->sound_conf.cards;
 	for (const char* c = *cards; c; c=*++cards) {
@@ -4151,7 +4151,7 @@ const bctbx_list_t * linphone_core_get_sound_devices_list(LinphoneCore *lc){
 	return cards_list;
 }
 
-const bctbx_list_t * linphone_core_get_video_devices_list(const LinphoneCore *lc){
+bctbx_list_t * linphone_core_get_video_devices_list(const LinphoneCore *lc){
 	bctbx_list_t *cards_list = NULL;
 	const char** cards = lc->video_conf.cams;
 	for (const char* c = *cards; c; c=*++cards) {

include/linphone/core.h

@@ -2697,7 +2697,7 @@ LINPHONE_PUBLIC const char** linphone_core_get_sound_devices(LinphoneCore *lc);
  * @return \bctbx_list{char *} An unmodifiable array of strings contanining the names of the available sound devices that is NULL terminated
  * @ingroup media_parameters
 **/
-LINPHONE_PUBLIC const bctbx_list_t * linphone_core_get_sound_devices_list(LinphoneCore *lc);
+LINPHONE_PUBLIC bctbx_list_t * linphone_core_get_sound_devices_list(const LinphoneCore *lc);
 
 /**
  * Use this function when you want to set the default sound devices
@@ -3613,7 +3613,7 @@ LINPHONE_PUBLIC const char**  linphone_core_get_video_devices(const LinphoneCore
  * @return \bctbx_list{char *} An unmodifiable array of strings contanining the names of the available video capture devices that is NULL terminated
  * @ingroup media_parameters
 **/
-LINPHONE_PUBLIC const bctbx_list_t * linphone_core_get_video_devices_list(LinphoneCore *lc);
+LINPHONE_PUBLIC bctbx_list_t * linphone_core_get_video_devices_list(const LinphoneCore *lc);
 
 /**
  * Sets the active video device.