Convert CONFIG_POWER_LTC3676 et al to Kconfig

This converts the following to Kconfig:
   CONFIG_POWER_FSL
   CONFIG_POWER_FSL_MC13892
   CONFIG_POWER_HI6553
   CONFIG_POWER_LTC3676
   CONFIG_POWER_PFUZE100
   CONFIG_POWER_PFUZE3000
   CONFIG_POWER_SPI
   CONFIG_POWER_TPS65090_EC
   CONFIG_POWER_TPS65218
   CONFIG_POWER_TPS65910

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/configs/mx53loco_defconfig b/configs/mx53loco_defconfig
index 193120f..08bcd35 100644
--- a/configs/mx53loco_defconfig
+++ b/configs/mx53loco_defconfig
@@ -58,6 +58,7 @@
 CONFIG_DM_REGULATOR=y
 CONFIG_DM_REGULATOR_FIXED=y
 CONFIG_DM_REGULATOR_GPIO=y
+CONFIG_POWER_FSL=y
 CONFIG_POWER_I2C=y
 CONFIG_MXC_UART=y
 CONFIG_USB=y