Add generic dmic kwd template.
Need to define flowing variable to make it work:
CHANNELS: channel for the DMIC
KFBM_TYPE: kfpm or vol-kfpm
DMIC_PCM_48K_ID: PCM ID for 48K DMIC
DMIC_PIPELINE_48k_ID: pipeline ID for 48K DMIC
DMIC_DAI_LINK_48K_ID: dai link ID in machine dirver for
48K DMIC
DMIC_PCM_16k_ID: PCM ID for KWD 16K DMIC
DMIC_PIPELINE_16k_ID: pipeline ID for 16K DMIC
DMIC_PIPELINE_KWD_ID: pipeline ID for KWD
DMIC_DAI_LINK_16k_ID: dai link ID in machine driver
for 16K DMIC
Signed-off-by: Pan Xiuli <xiuli.pan@linux.intel.com>