IsActiveDeviceType: poll only matching device type

[Portisch]

There is a delay of 10-30 seconds until key press transfer get functional when starting Kodi with libCEC. The reason is the function IsActiveDeviceType because it poll all nodes on the CEC bus. This commit will filter the devices by given type before polling to minimize the delay.

Be lenient with me, I am not so familiar with the libCEC source and I don't have the hardware to test it.
So if this will not work please help to find another way to fix this annoying startup delay.

[Portisch]

I fixed the GetStatus() call, now it's working again like before. Confirmed by user log and hardware.

[opdenkamp]

I've done this change a bit differently so it only needs 1 match and doesn't check all active devices. Thanks!

[Portisch]

Sorry, but it looks like this isn't working as the audio device is not getting polled:
http://ix.io/2fRb

Here the log with my patch where it's working:
http://ix.io/2dDh

What I have seen this call is needed to make a poll on the CEC bus:
77509de#diff-2ceaa2986364201cfc2645aad3c5f817R1466

[Portisch]

Fixed by d9c415c & 416e136!
Could confirm it's working now by a test user.
Thank you very much!