pmc: Move rail power function to its own object

bdk/soc/pmc.h

@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2018 naehrwert
  * Copyright (c) 2018 st4rk
+ * Copyright (c) 2018-2020 CTCaer
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -18,6 +19,8 @@
 #ifndef _PMC_H_
 #define _PMC_H_
 
+#include <utils/types.h>
+
 /*! PMC registers. */
 #define APBDEV_PMC_CNTRL 0x0
 #define  PMC_CNTRL_MAIN_RST (1 << 4)
@@ -84,4 +87,6 @@
 #define APBDEV_PMC_SCRATCH190 0x818
 #define APBDEV_PMC_SCRATCH200 0x840
 
+int pmc_enable_partition(u32 part, int enable);
+
 #endif