[PATCH] ALSA: conf: Save SND_CONFIG_TYPE_REAL with at least one decimal

Hi, patch for saving SND_CONFIG_TYPE_REAL with at least one decimal as to not misinterpret the value as an integer in snd_config_get_real. Example would be the sofvol configuration property min_dB and max_dB, that are required to have at least one decimal.

All the best

// Simon