sparc64: move EXPORT_SYMBOL to the symbols definition

Move all applicable EXPORT_SYMBOL()s to the file where the respective
symbol is defined.

Removed all the includes that are no longer needed in sparc_ksyms_64.c

Comment all remaining EXPORT_SYMBOL()s in sparc_ksyms_64.c

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>

Additions by Julian Calaby:
* Moved EXPORT_SYMBOL()s for prom functions to their rightful places.
* Made some minor cleanups to the includes and comments of sparc_ksyms_64.c
* Updated and tidied commit message.
* Rebased patch over sparc-2.6.git HEAD.
* Ensured that all modified files have the correct includes.

Signed-off-by: Julian Calaby <julian.calaby@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc/kernel/sys_sparc_64.c b/arch/sparc/kernel/sys_sparc_64.c
index 39749e3..09058fc 100644
--- a/arch/sparc/kernel/sys_sparc_64.c
+++ b/arch/sparc/kernel/sys_sparc_64.c
@@ -23,6 +23,7 @@
 #include <linux/ipc.h>
 #include <linux/personality.h>
 #include <linux/random.h>
+#include <linux/module.h>
 
 #include <asm/uaccess.h>
 #include <asm/utrap.h>
@@ -354,6 +355,7 @@
 
 	return addr;
 }
+EXPORT_SYMBOL(get_fb_unmapped_area);
 
 /* Essentially the same as PowerPC... */
 void arch_pick_mmap_layout(struct mm_struct *mm)