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>
diff --git a/include/fsl_esdhc.h b/include/fsl_esdhc.h
index e148eaa..2615d1a 100644
--- a/include/fsl_esdhc.h
+++ b/include/fsl_esdhc.h
@@ -204,16 +204,16 @@
 #endif
 
 #ifdef CONFIG_FSL_ESDHC
-int fsl_esdhc_mmc_init(bd_t *bis);
-int fsl_esdhc_initialize(bd_t *bis, struct fsl_esdhc_cfg *cfg);
-void fdt_fixup_esdhc(void *blob, bd_t *bd);
+int fsl_esdhc_mmc_init(struct bd_info *bis);
+int fsl_esdhc_initialize(struct bd_info *bis, struct fsl_esdhc_cfg *cfg);
+void fdt_fixup_esdhc(void *blob, struct bd_info *bd);
 #ifdef MMC_SUPPORTS_TUNING
 static inline int fsl_esdhc_execute_tuning(struct udevice *dev,
 					   uint32_t opcode) {return 0; }
 #endif
 #else
-static inline int fsl_esdhc_mmc_init(bd_t *bis) { return -ENOSYS; }
-static inline void fdt_fixup_esdhc(void *blob, bd_t *bd) {}
+static inline int fsl_esdhc_mmc_init(struct bd_info *bis) { return -ENOSYS; }
+static inline void fdt_fixup_esdhc(void *blob, struct bd_info *bd) {}
 #endif /* CONFIG_FSL_ESDHC */
 void __noreturn mmc_boot(void);
 void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst);