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/arch/nios2/include/asm/io.h b/arch/nios2/include/asm/io.h
index 41e6bd4..817cd72 100644
--- a/arch/nios2/include/asm/io.h
+++ b/arch/nios2/include/asm/io.h
@@ -7,6 +7,8 @@
 #ifndef __ASM_NIOS2_IO_H_
 #define __ASM_NIOS2_IO_H_
 
+#include <asm/global_data.h>
+
 static inline void sync(void)
 {
 	__asm__ __volatile__ ("sync" : : : "memory");
@@ -170,5 +172,6 @@
 #define memcpy_toio(a, b, c)		memcpy((void *)(a), (b), (c))
 
 #include <asm-generic/io.h>
+#include <asm/global_data.h>
 
 #endif /* __ASM_NIOS2_IO_H_ */