treewide: convert bd_t to struct bd_info by coccinelle

The Linux coding style guide (Documentation/process/coding-style.rst)
clearly says:

  It's a **mistake** to use typedef for structures and pointers.

Besides, using typedef for structures is annoying when you try to make
headers self-contained.

Let's say you have the following function declaration in a header:

  void foo(bd_t *bd);

This is not self-contained since bd_t is not defined.

To tell the compiler what 'bd_t' is, you need to include <asm/u-boot.h>

  #include <asm/u-boot.h>
  void foo(bd_t *bd);

Then, the include direcective pulls in more bloat needlessly.

If you use 'struct bd_info' instead, it is enough to put a forward
declaration as follows:

  struct bd_info;
  void foo(struct bd_info *bd);

Right, typedef'ing bd_t is a mistake.

I used coccinelle to generate this commit.

The semantic patch that makes this change is as follows:

  <smpl>
  @@
  typedef bd_t;
  @@
  -bd_t
  +struct bd_info
  </smpl>

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>

arch/arm/include/asm/arch-mx27/mxcmmc.h

@@ -6,6 +6,6 @@
 #ifndef ASM_ARCH_MXCMMC_H
 #define ASM_ARCH_MXCMMC_H
 
-int mxc_mmc_init(bd_t *bis);
+int mxc_mmc_init(struct bd_info *bis);
 
 #endif

arch/arm/include/asm/arch-mx31/sys_proto.h

@@ -16,5 +16,5 @@ struct mxc_weimcs {
 };
 
 void mxc_setup_weimcs(int cs, const struct mxc_weimcs *weimcs);
-int mxc_mmc_init(bd_t *bis);
+int mxc_mmc_init(struct bd_info *bis);
 #endif

arch/arm/include/asm/arch-mx6/litesom.h

@@ -6,7 +6,7 @@
 #ifndef __ARCH_ARM_MX6UL_LITESOM_H__
 #define __ARCH_ARM_MX6UL_LITESOM_H__
 
-int litesom_mmc_init(bd_t *bis);
+int litesom_mmc_init(struct bd_info *bis);
 
 #ifdef CONFIG_SPL_BUILD
 void litesom_init_f(void);

arch/arm/include/asm/arch-mxs/sys_proto.h

@@ -11,7 +11,8 @@
 
 #include <asm/mach-imx/sys_proto.h>
 
-int mxsmmc_initialize(bd_t *bis, int id, int (*wp)(int), int (*cd)(int));
+int mxsmmc_initialize(struct bd_info *bis, int id, int (*wp)(int),
+		      int (*cd)(int));
 
 #ifdef CONFIG_SPL_BUILD