power: Rename CONFIG_POWER_TPS65217 with CONFIG_PMIC_TPS65217

Up till now the CONFIG_POWER_TPS65217 has been defined in several header
files for am335x SoC.

This patch renames it to CONFIG_PMIC_TPS65217, which better reflects the
role of this IC circuit.

Moreover, new CONFIG_PMIC_TPS65217 has been introduced in Kconfig
to be used with boards, which both support DM_PMIC and DM_I2C.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
[trini: Migrate all other platforms as well]
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index ce0adb1..953c92e 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -369,6 +369,14 @@
 
 endif
 
+config PMIC_TPS65217
+	bool "Enable driver for Texas Instruments TPS65217 PMIC"
+	---help---
+	The TPS65217 is a PMIC containing several LDOs, DC to DC convertors,
+	FETs and a battery charger. This driver provides register access
+	only, and you can enable the regulator/charger drivers separately if
+	required.
+
 config POWER_MC34VR500
 	bool "Enable driver for Freescale MC34VR500 PMIC"
 	depends on !DM_PMIC