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/arch/arm/mach-omap2/fdt-common.c b/arch/arm/mach-omap2/fdt-common.c
index 5f344f8..5eb0447 100644
--- a/arch/arm/mach-omap2/fdt-common.c
+++ b/arch/arm/mach-omap2/fdt-common.c
@@ -21,7 +21,7 @@
 #define CONFIG_SECURE_RUNTIME_RESV_SRAM_SZ (0)
 #endif
 
-int ft_hs_disable_rng(void *fdt, bd_t *bd)
+int ft_hs_disable_rng(void *fdt, struct bd_info *bd)
 {
 	const char *path;
 	int offs;
@@ -69,7 +69,7 @@
 	return p - (char *)buf;
 }
 
-int ft_hs_fixup_dram(void *fdt, bd_t *bd)
+int ft_hs_fixup_dram(void *fdt, struct bd_info *bd)
 {
 	const char *path, *subpath;
 	int offs, len;
@@ -122,10 +122,10 @@
 	return 0;
 }
 #else
-int ft_hs_fixup_dram(void *fdt, bd_t *bd) { return 0; }
+int ft_hs_fixup_dram(void *fdt, struct bd_info *bd) { return 0; }
 #endif
 
-int ft_hs_add_tee(void *fdt, bd_t *bd)
+int ft_hs_add_tee(void *fdt, struct bd_info *bd)
 {
 	const char *path, *subpath;
 	int offs;