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/drivers/misc/imx8/fuse.c b/drivers/misc/imx8/fuse.c
index be18122..38111c5 100644
--- a/drivers/misc/imx8/fuse.c
+++ b/drivers/misc/imx8/fuse.c
@@ -9,6 +9,7 @@
 #include <fuse.h>
 #include <asm/arch/sci/sci.h>
 #include <asm/arch/sys_proto.h>
+#include <asm/global_data.h>
 #include <linux/arm-smccc.h>
 
 DECLARE_GLOBAL_DATA_PTR;
diff --git a/drivers/misc/imx8/scu.c b/drivers/misc/imx8/scu.c
index 72a3473..035a600 100644
--- a/drivers/misc/imx8/scu.c
+++ b/drivers/misc/imx8/scu.c
@@ -7,6 +7,7 @@
 
 #include <common.h>
 #include <log.h>
+#include <asm/global_data.h>
 #include <asm/io.h>
 #include <dm.h>
 #include <dm/lists.h>
diff --git a/drivers/misc/imx8/scu_api.c b/drivers/misc/imx8/scu_api.c
index 20b74fb..27ecce7 100644
--- a/drivers/misc/imx8/scu_api.c
+++ b/drivers/misc/imx8/scu_api.c
@@ -8,6 +8,7 @@
 #include <common.h>
 #include <hang.h>
 #include <malloc.h>
+#include <asm/global_data.h>
 #include <asm/io.h>
 #include <dm.h>
 #include <asm/arch/sci/sci.h>