hv: reloc: define data structure and MACRO when necessary

Some data structure are only used under some condition. This patch move data
structure definition under its corresponding contion. Otherwise, it would
violate MISRA-C 413 S "User type declared but not used in code analysed".
For MACRO, it would violate MISRA-C 628 S "Macro not used in translation unit".

Tracked-On: #861
Signed-off-by: Li, Fei1 <fei1.li@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>

Author: lifeix

hypervisor/boot/reloc.c

@@ -8,21 +8,23 @@
 #include <reloc.h>
 #include <vm0_boot.h>
 
-struct Elf64_Dyn {
-	uint64_t d_tag;
-	uint64_t d_ptr;
-};
-
+#ifdef CONFIG_RELOC
 #define DT_NULL		0	/* end of .dynamic section */
 #define DT_RELA		7	/* relocation table */
 #define DT_RELASZ	8	/* size of reloc table */
 #define DT_RELAENT	9	/* size of one entry */
 
+struct Elf64_Dyn {
+	uint64_t d_tag;
+	uint64_t d_ptr;
+};
+
 struct Elf64_Rel {
 	uint64_t r_offset;
 	uint64_t r_info;
 	uint64_t reserved;
 };
+#endif
 
 static inline uint64_t elf64_r_type(uint64_t i)
 {