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>

drivers/net/e1000.c

@@ -5634,7 +5634,7 @@ e1000_disable(struct eth_device *nic)
 INIT - set up ethernet interface(s)
 ***************************************************************************/
 static int
-e1000_init(struct eth_device *nic, bd_t *bis)
+e1000_init(struct eth_device *nic, struct bd_info *bis)
 {
 	struct e1000_hw *hw = nic->priv;
 
@@ -5700,7 +5700,7 @@ PROBE - Look for an adapter, this routine's visible to the outside
 You should omit the last argument struct pci_device * for a non-PCI NIC
 ***************************************************************************/
 int
-e1000_initialize(bd_t * bis)
+e1000_initialize(struct bd_info * bis)
 {
 	unsigned int i;
 	pci_dev_t devno;