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/lib/bootm.c

@@ -124,7 +124,7 @@ static void announce_and_cleanup(int fake)
 	cleanup_before_linux();
 }
 
-static void setup_start_tag (bd_t *bd)
+static void setup_start_tag (struct bd_info *bd)
 {
 	params = (struct tag *)bd->bi_boot_params;
 
@@ -138,7 +138,7 @@ static void setup_start_tag (bd_t *bd)
 	params = tag_next (params);
 }
 
-static void setup_memory_tags(bd_t *bd)
+static void setup_memory_tags(struct bd_info *bd)
 {
 	int i;
 
@@ -153,7 +153,7 @@ static void setup_memory_tags(bd_t *bd)
 	}
 }
 
-static void setup_commandline_tag(bd_t *bd, char *commandline)
+static void setup_commandline_tag(struct bd_info *bd, char *commandline)
 {
 	char *p;
 
@@ -178,7 +178,8 @@ static void setup_commandline_tag(bd_t *bd, char *commandline)
 	params = tag_next (params);
 }
 
-static void setup_initrd_tag(bd_t *bd, ulong initrd_start, ulong initrd_end)
+static void setup_initrd_tag(struct bd_info *bd, ulong initrd_start,
+			     ulong initrd_end)
 {
 	/* an ATAG_INITRD node tells the kernel where the compressed
 	 * ramdisk can be found. ATAG_RDIMG is a better name, actually.
@@ -217,7 +218,7 @@ static void setup_revision_tag(struct tag **in_params)
 	params = tag_next (params);
 }
 
-static void setup_end_tag(bd_t *bd)
+static void setup_end_tag(struct bd_info *bd)
 {
 	params->hdr.tag = ATAG_NONE;
 	params->hdr.size = 0;