[XEN PATCH v2 06/10] x86/EFI: address violations of MISRA C:2012 Directive 4.10

[Simone Ballarin <simone.ballarin@xxxxxxxxxxx>]

Add inclusion guard to address violations of
MISRA C:2012 Directive 4.10 ("Precautions shall be taken in order
to prevent the contents of a header file being included more than
once").

Mechanical change.

Signed-off-by: Simone Ballarin <simone.ballarin@xxxxxxxxxxx>

---
Changes in v2:
- remove changes in "xen/arch/x86/efi/efi-boot.h"

Note:
Changes in efi-boot.h have been removed since the file is
intenteded to be included by common/efi/boot.c only. This motivation
is not enough to raise a deviation record, so the violation is
still present.
---
 xen/arch/x86/efi/runtime.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/xen/arch/x86/efi/runtime.h b/xen/arch/x86/efi/runtime.h
index 77866c5f21..10b36bcb89 100644
--- a/xen/arch/x86/efi/runtime.h
+++ b/xen/arch/x86/efi/runtime.h
@@ -1,3 +1,6 @@
+#ifndef __X86_EFI_RUNTIME_H__
+#define __X86_EFI_RUNTIME_H__
+
 #include <xen/domain_page.h>
 #include <xen/mm.h>
 #include <asm/atomic.h>
@@ -17,3 +20,5 @@ void efi_update_l4_pgtable(unsigned int l4idx, l4_pgentry_t 
l4e)
     }
 }
 #endif
+
+#endif /* __X86_EFI_RUNTIME_H__ */
-- 
2.34.1