Move memmap.h out of arch/i386; it no longer contains anything

architecture-dependent and is needed by the ELF code.

src/arch/i386/core/relocate.c

@@ -1,6 +1,6 @@
 #include <io.h>
 #include <registers.h>
-#include <memmap.h>
+#include <gpxe/memmap.h>
 
 /*
  * Originally by Eric Biederman

src/arch/i386/firmware/pcbios/memmap.c

@@ -20,7 +20,7 @@
 #include <errno.h>
 #include <realmode.h>
 #include <bios.h>
-#include <memmap.h>
+#include <gpxe/memmap.h>
 
 /**
  * @file

src/arch/i386/include/memmap.h

@@ -1,34 +0,0 @@
-#ifndef _MEMMAP_H
-#define _MEMMAP_H
-
-#include <stdint.h>
-
-/**
- * @file
- *
- * Memory mapping
- *
- */
-
-/** A usable memory region */
-struct memory_region {
-	/** Physical start address */
-	uint64_t start;
-	/** Physical end address */
-	uint64_t end;
-};
-
-/** Maximum number of memory regions we expect to encounter */
-#define MAX_MEMORY_REGIONS 8
-
-/** A memory map */
-struct memory_map {
-	/** Memory regions */
-	struct memory_region regions[MAX_MEMORY_REGIONS];
-	/** Number of used regions */
-	unsigned int count;
-};
-
-extern void get_memmap ( struct memory_map *memmap );
-
-#endif /* _MEMMAP_H */