common: Drop asm/global_data.h from common header

Move this out of the common header and include it only where needed.  In
a number of cases this requires adding "struct udevice;" to avoid adding
another large header or in other cases replacing / adding missing header
files that had been pulled in, very indirectly.   Finally, we have a few
cases where we did not need to include <asm/global_data.h> at all, so
remove that include.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/common/cli_hush.c b/common/cli_hush.c
index b7f0f0f..9466651 100644
--- a/common/cli_hush.c
+++ b/common/cli_hush.c
@@ -84,6 +84,7 @@
 #include <cli.h>
 #include <cli_hush.h>
 #include <command.h>        /* find_cmd */
+#include <asm/global_data.h>
 #endif
 #ifndef __U_BOOT__
 #include <ctype.h>     /* isalpha, isdigit */