ALSA: line6: Remove snd_line6_ prefix of pcm property fields

It's just superfluous and doesn't give any better readability.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --cc sound/usb/line6/capture.c
Simple merge

diff --cc sound/usb/line6/pcm.h
Simple merge

diff --cc sound/usb/line6/playback.c
Simple merge

diff --cc sound/usb/line6/pod.c
Simple merge

diff --cc sound/usb/line6/podhd.c
Simple merge

diff --cc sound/usb/line6/toneport.c
Simple merge