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/spl/spl.c b/common/spl/spl.c
index cdd7b05..e3d8408 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -18,6 +18,7 @@
 #include <log.h>
 #include <serial.h>
 #include <spl.h>
+#include <asm/global_data.h>
 #include <asm/u-boot.h>
 #include <nand.h>
 #include <fat.h>
diff --git a/common/spl/spl_fit.c b/common/spl/spl_fit.c
index a6ad094..a2612b4 100644
--- a/common/spl/spl_fit.c
+++ b/common/spl/spl_fit.c
@@ -14,6 +14,7 @@
 #include <spl.h>
 #include <sysinfo.h>
 #include <asm/cache.h>
+#include <asm/global_data.h>
 #include <linux/libfdt.h>
 
 DECLARE_GLOBAL_DATA_PTR;
diff --git a/common/spl/spl_opensbi.c b/common/spl/spl_opensbi.c
index 41e0746..1c0abf8 100644
--- a/common/spl/spl_opensbi.c
+++ b/common/spl/spl_opensbi.c
@@ -11,6 +11,7 @@
 #include <hang.h>
 #include <image.h>
 #include <spl.h>
+#include <asm/global_data.h>
 #include <asm/smp.h>
 #include <opensbi.h>
 #include <linux/libfdt.h>
diff --git a/common/spl/spl_spi.c b/common/spl/spl_spi.c
index 2744fb5..6a4e033 100644
--- a/common/spl/spl_spi.c
+++ b/common/spl/spl_spi.c
@@ -15,6 +15,7 @@
 #include <spi_flash.h>
 #include <errno.h>
 #include <spl.h>
+#include <asm/global_data.h>
 
 DECLARE_GLOBAL_DATA_PTR;