[PATCH 2/2] arm: Include missing <grub/symbol.h> header

[Javier Martinez Canillas <javierm@redhat.com>]

The header uses the EXPORT_FUNC() macro defined in <grub/types.h> but
doens't include it, which leads to the following compile error on arm:

../include/grub/cpu/system.h:12:13: error: ‘EXPORT_FUNC’ declared as function returning a function
   12 | extern void EXPORT_FUNC(grub_arm_disable_caches_mmu) (void);
      |             ^~~~~~~~~~~
../include/grub/cpu/system.h:12:1: warning: parameter names (without types) in function declaration
   12 | extern void EXPORT_FUNC(grub_arm_disable_caches_mmu) (void);
      | ^~~~~~
make[3]: *** [Makefile:36581: kern/efi/kernel_exec-sb.o] Error 1

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
---

 include/grub/arm/system.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/grub/arm/system.h b/include/grub/arm/system.h
index f62c18c13a8..f15ce9751a5 100644
--- a/include/grub/arm/system.h
+++ b/include/grub/arm/system.h
@@ -1,6 +1,7 @@
 #ifndef GRUB_SYSTEM_CPU_HEADER
 #define GRUB_SYSTEM_CPU_HEADER
 
+#include <grub/symbol.h>
 #include <grub/types.h>
 
 enum
-- 
2.28.0