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/am33xx/fdt.c b/arch/arm/mach-omap2/am33xx/fdt.c
index c81dc80..2ec30b1 100644
--- a/arch/arm/mach-omap2/am33xx/fdt.c
+++ b/arch/arm/mach-omap2/am33xx/fdt.c
@@ -14,7 +14,7 @@
 
 #ifdef CONFIG_TI_SECURE_DEVICE
 
-static void ft_hs_fixups(void *fdt, bd_t *bd)
+static void ft_hs_fixups(void *fdt, struct bd_info *bd)
 {
 	/* Check we are running on an HS/EMU device type */
 	if (GP_DEVICE != get_device_type()) {
@@ -29,7 +29,7 @@
 	hang();
 }
 #else
-static void ft_hs_fixups(void *fdt, bd_t *bd) { }
+static void ft_hs_fixups(void *fdt, struct bd_info *bd) { }
 #endif /* #ifdef CONFIG_TI_SECURE_DEVICE */
 
 /*
@@ -37,7 +37,7 @@
  * fixups should remain in the board files which is where
  * this function should be called from.
  */
-void ft_cpu_setup(void *fdt, bd_t *bd)
+void ft_cpu_setup(void *fdt, struct bd_info *bd)
 {
 	ft_hs_fixups(fdt, bd);
 }