wireless_serial app: Fixed a new bug in updateSerialMode.
wireless_serial app: Fixed a new bug in updateSerialMode.

saercnap/wixel-DexDrip,attackcrow/wixel,markncooper/burnerlight,kevinwchang/wixel-sdk,pdg137/wixel-sdk,saercnap/wixel-DexDrip,sm6xmm/wixel-xDrip,raduiliescu/wixel-DexDrip,novagannas/wixel-xDrip,jamorham/wixel-xDrip,attackcrow/wixel,novagannas/wixel-xDrip,novagannas/wixel-xDrip,StephenBlackWasAlreadyTaken/wixel-xDrip,jamorham/wixel-xDrip,sm6xmm/wixel-xDrip,sm6xmm/wixel-xDrip,Cagier/wixel-xDrip,markncooper/burnerlight,pdg137/wixel-sdk,markncooper/burnerlight,sm6xmm/wixel-xDrip,StephenBlackWasAlreadyTaken/wixel-xDrip,attackcrow/wixel,Cagier/wixel-xDrip,attackcrow/wixel,raduiliescu/wixel-DexDrip,jamorham/wixel-xDrip,saercnap/wixel-DexDrip,raduiliescu/wixel-DexDrip,StephenBlackWasAlreadyTaken/wixel-xDrip,jamorham/wixel-xDrip,kevinwchang/wixel-sdk,kevinwchang/wixel-sdk,Cagier/wixel-xDrip,pdg137/wixel-sdk