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/board/freescale/t104xrdb/ddr.c b/board/freescale/t104xrdb/ddr.c
index e313bf9..8351f7c 100644
--- a/board/freescale/t104xrdb/ddr.c
+++ b/board/freescale/t104xrdb/ddr.c
@@ -8,6 +8,7 @@
 #include <hwconfig.h>
 #include <init.h>
 #include <log.h>
+#include <asm/global_data.h>
 #include <asm/mmu.h>
 #include <fsl_ddr_sdram.h>
 #include <fsl_ddr_dimm_params.h>
diff --git a/board/freescale/t104xrdb/spl.c b/board/freescale/t104xrdb/spl.c
index 28ac12a..f5fe73e 100644
--- a/board/freescale/t104xrdb/spl.c
+++ b/board/freescale/t104xrdb/spl.c
@@ -14,6 +14,7 @@
 #include <mmc.h>
 #include <fsl_esdhc.h>
 #include <spi_flash.h>
+#include <asm/global_data.h>
 #include "../common/sleep.h"
 #include "../common/spl.h"
 
diff --git a/board/freescale/t104xrdb/t104xrdb.c b/board/freescale/t104xrdb/t104xrdb.c
index c7290e5..7800434 100644
--- a/board/freescale/t104xrdb/t104xrdb.c
+++ b/board/freescale/t104xrdb/t104xrdb.c
@@ -12,6 +12,7 @@
 #include <init.h>
 #include <log.h>
 #include <netdev.h>
+#include <asm/global_data.h>
 #include <linux/compiler.h>
 #include <asm/mmu.h>
 #include <asm/processor.h>