SmartAudio-CMS fixes and improvements https://github.com/cleanflight/cleanflight/pull/2941 https://github.com/betaflight/betaflight/pull/4265 Implements some fixes and improvements to the SmartAudio part of the CMS OSD menus: CMS set of USER frequency would fail if frequency was same as previous USER frequency CMS would set vtx freq immediately when going from USER to CHAN freq mode (should wait until SET performed) After changing CHAN/USER freq mode but before SET, the CMS status line would show wrong band-channel / U-F display (needed new 'saCmsFselModeNew' variable) CMS will now update when saDevice settings change (if race opmodel via CMS and then user freq set via CLI "set vtx_freq", freq is set but CMS would report race opmodel and old band/channel) Modified SA CMS to use 'saSetPitFreq()' function Moved 'saCmsUpdate()' declaration to 'cms_menu_vtx_smartaudio.h'