lavd: rename fbdev.c into fbdev_dec.c

Rename existing fbdev.c to make it a more meaningful name.
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

libavdevice/Makefile

@@ -23,7 +23,7 @@ OBJS-$(CONFIG_DSHOW_INDEV)               += dshow.o dshow_enummediatypes.o \
                                             dshow_enumpins.o dshow_filter.o \
                                             dshow_pin.o dshow_common.o
 OBJS-$(CONFIG_DV1394_INDEV)              += dv1394.o
-OBJS-$(CONFIG_FBDEV_INDEV)               += fbdev.o
+OBJS-$(CONFIG_FBDEV_INDEV)               += fbdev_dec.o
 OBJS-$(CONFIG_FBDEV_OUTDEV)              += fbdev_enc.o
 OBJS-$(CONFIG_IEC61883_INDEV)            += iec61883.o
 OBJS-$(CONFIG_JACK_INDEV)                += jack_audio.o timefilter.o