ASoC: soc: Add pinctrl-lpi legacy driver for sdm660

Use the legacy pinctrl-lpi driver for sdm660
instead of the latest driver to avoid conflicts.

Change-Id: I58b1854eecb9488227c6e378c9ac10f779259e90
Signed-off-by: Soumya Managoli <smanag@codeaurora.org>