target/i386/hvf: rename some include guards

These headers will be moved out to its own component.

Signed-off-by: Wei Liu <liuwe@linux.microsoft.com>
Link: https://lore.kernel.org/r/1741377325-28175-11-git-send-email-liuwe@linux.microsoft.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

target/i386/hvf/x86.h

@@ -16,8 +16,8 @@
  * License along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef HVF_X86_H
-#define HVF_X86_H
+#ifndef X86_EMU_DEFS_H
+#define X86_EMU_DEFS_H
 
 typedef struct x86_register {
     union {

target/i386/hvf/x86_decode.h

@@ -15,8 +15,8 @@
  * License along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
-#ifndef HVF_X86_DECODE_H
-#define HVF_X86_DECODE_H
+#ifndef X86_EMU_DECODE_H
+#define X86_EMU_DECODE_H
 
 #include "cpu.h"
 #include "x86.h"

target/i386/hvf/x86_flags.h

@@ -21,8 +21,8 @@
  * x86 eflags functions
  */
 
-#ifndef X86_FLAGS_H
-#define X86_FLAGS_H
+#ifndef X86_EMU_FLAGS_H
+#define X86_EMU_FLAGS_H
 
 #include "cpu.h"
 void lflags_to_rflags(CPUX86State *env);
@@ -78,4 +78,4 @@ void SET_FLAGS_OSZAPC_LOGIC16(CPUX86State *env, uint16_t v1, uint16_t v2,
 void SET_FLAGS_OSZAPC_LOGIC8(CPUX86State *env, uint8_t v1, uint8_t v2,
                              uint8_t diff);
 
-#endif /* X86_FLAGS_H */
+#endif /* X86_EMU_FLAGS_H */