[*] StbMainApp: dvb: Use EIT_media_config_t struct for determine transponder in service scan

Signed-off-by: Anton Sergeev <Anton.Sergeev@elecard.ru>
[*] StbMainApp: Fix using uninitialized semaphores

Signed-off-by: Anton Sergeev <Anton.Sergeev@elecard.ru>
[*] StbMainApp: Refactore dvbfe_getSignalInfo()

Signed-off-by: Anton Sergeev <Anton.Sergeev@elecard.ru>
[*] StbMainApp: Show warning icon on frequency scan fail

Signed-off-by: Anton Sergeev <Anton.Sergeev@elecard.ru>