ALSA: sparc: no need to initialise statics to 0

Static variables do not need to be initialised to 0, because compiler
will initialise all uninitialised statics to 0. Thus, remove the
unneeded initializations.

Signed-off-by: Jason Wang <wangborong@cdjrlc.com>
Link: https://lore.kernel.org/r/20211212070422.281924-1-wangborong@cdjrlc.com


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