ALSA: hdspm - remove unneeded semicolon

sound/pci/rme9652/hdspm.c:1110:2-3: Unneeded semicolon

Generated by: coccinelle/misc/semicolon.cocci

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>