power: pmic: lp873x: Add the base pmic support

Add support to bind the regulators/child nodes with the pmic.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index 1a85566..ce204b3 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -150,3 +150,10 @@
 	---help---
 	The PALMAS is a PMIC containing several LDOs, SMPS.
 	This driver binds the pmic children.
+
+config PMIC_LP873X
+	bool "Enable driver for Texas Instruments LP873X PMIC"
+	depends on DM_PMIC
+	---help---
+	The LP873X is a PMIC containing couple of LDOs and couple of SMPS.
+	This driver binds the pmic children.