asoc: swr-haptics: add non-HBoost regulator support

Haptics module is supplied by HBoost regulator by default, it requests
voltage to HBoost regulator through hardware channel. Haptics module
can also be configured to use other regulator device, in this case, it
requires software to request the voltage from the regulator before
enabling the play. Add support for this.

Change-Id: I4a8305ff2732a92bc8be90bd3ed197fa643a101e
Signed-off-by: Fenglin Wu <fenglinw@codeaurora.org>