Convert CONFIG_TPS6586X_POWER et al to Kconfig

This converts the following to Kconfig:
   CONFIG_TPS6586X_POWER
   CONFIG_TWL6030_POWER

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/omap4_panda_defconfig b/configs/omap4_panda_defconfig
index 0cae1c6..79807f1 100644
--- a/configs/omap4_panda_defconfig
+++ b/configs/omap4_panda_defconfig
@@ -45,6 +45,7 @@
 CONFIG_SYS_I2C_LEGACY=y
 CONFIG_SPL_SYS_I2C_LEGACY=y
 CONFIG_MMC_OMAP_HS=y
+CONFIG_TWL6030_POWER=y
 CONFIG_CONS_INDEX=3
 CONFIG_SYS_NS16550_SERIAL=y
 CONFIG_USB=y