SDxFIFOS register indicates the fifo size directly. There is no need to
modify the value after reading the register.
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20231006102857.749143-3-cezary.rojewski@intel.comSigned-off-by: Takashi Iwai <tiwai@suse.de>