power: rk808: rename to rk8xx

Since this driver can be used for rk8xx series pmic,
let's rename rk808 to rk8xx, to make it clear.

Configs parts are done by sed -i "s/RK808/RK8XX/g" `grep RK808 -lr ./`

Signed-off-by: Jacob Chen <jacob-chen@iotwrt.com>
diff --git a/include/power/rk808_pmic.h b/include/power/rk8xx_pmic.h
similarity index 95%
rename from include/power/rk808_pmic.h
rename to include/power/rk8xx_pmic.h
index c370c32..589f8c4 100644
--- a/include/power/rk808_pmic.h
+++ b/include/power/rk8xx_pmic.h
@@ -5,8 +5,8 @@
  * SPDX-License-Identifier:	GPL-2.0+
  */
 
-#ifndef _PMIC_RK808_H_
-#define _PMIC_RK808_H_
+#ifndef _PMIC_RK8XX_H_
+#define _PMIC_RK8XX_H_
 
 enum {
 	REG_SECONDS			= 0x00,
@@ -178,16 +178,16 @@
 
 #define RK8XX_ID_MSK	0xfff0
 
-struct rk808_reg_table {
+struct rk8xx_reg_table {
 	char *name;
 	u8 reg_ctl;
 	u8 reg_vol;
 };
 
-struct rk808_priv {
+struct rk8xx_priv {
 	int variant;
 };
 
-int rk808_spl_configure_buck(struct udevice *pmic, int buck, int uvolt);
+int rk8xx_spl_configure_buck(struct udevice *pmic, int buck, int uvolt);
 
 #endif