palmas: rename init_settings to an generic palmas init

Since TPS659038/TWL6035/TWL6037 all belong to palmas family of TI PMICs,
rename twl6035_init_settings with an more generic palmas_init_settings

Signed-off-by: Nishanth Menon <nm@ti.com>
diff --git a/drivers/power/palmas.c b/drivers/power/palmas.c
index 8ed7742..bf36a19 100644
--- a/drivers/power/palmas.c
+++ b/drivers/power/palmas.c
@@ -45,7 +45,7 @@
 	return i2c_read(chip_no, reg, 1, val, 1);
 }
 
-void twl6035_init_settings(void)
+void palmas_init_settings(void)
 {
 	return;
 }