Use 0x6b for the charge controller's slave address isntead of 0x68 (RTC's slave address)

board/emcraft/imx8m_som/spl.c

@@ -213,12 +213,12 @@ void init_charger_bq25896(void)
 	u8 val;
 
 	/* limit the charge current to 1.6A */
-	i2c_reg_write(0x68, 0x12, 0x20);
+	i2c_reg_write(0x6b, 0x12, 0x20);
 
 	/* set the max voltage to 4.912V */
-	val = i2c_reg_read(0x68, 0x6);
+	val = i2c_reg_read(0x6b, 0x6);
 	val = (val & 0xFC) | 0x16 << 2;
-	i2c_reg_write(0x68, 0x6, val);
+	i2c_reg_write(0x6b, 0x6, val);
 }
 
 #define LDO_VOLT_EN                     (1 << 6)