telephony: SamsungRIL cleanup

== RIL ==
* remove unused "found" boolean in processSolicited
* make requestToString/repsonseToString append the request
  ID on unknown requests.

== Samsung RIL ==
* add CM copyright header to file
* SAMSUNG_UNKNOWN_MAGIC_REQUEST_3 is actually UNSOL_AM
* add DIAL_EMERGENCY to a SamsungRIL::requestToString
* add DIAL_EMERGENCY response to processSolicited
* move emergency dialing into dialEmergencyCall()
* dialEmergencyCall() also ditches UUS info like on stock.
* cleanup and improve readibility of responseCallList()
* move isVideo before isVoicePrivacy, as it is in stock:
    ref "stock" code: http://pastebin.com/WePMyXDi
    ref "stock" order: isMpty then isMT then als then isVoice then isVideo
                       then isVoicePrivacy
    ref cm code: http://pastebin.com/UU105gNr
    ref cm order: isMpty then isMT then als then isVoice then
                  isVoicePrivacy then "videoMagic"
* general cleanup

Change-Id: Ic4ada0a3d6ac1bf580b3930a2599a91e822540ef