add MAP_NORESERVE to bits/mman.h

this is needed for qemu, and since it differs for each arch
it can't be circumvented easily by using a macro in CFLAGS.

arch/arm/bits/mman.h

@@ -16,6 +16,7 @@
 #define MAP_ANON       0x20
 #define MAP_ANONYMOUS  MAP_ANON
 #define MAP_32BIT      0x40
+#define MAP_NORESERVE  0x4000
 
 #define POSIX_MADV_NORMAL       0
 #define POSIX_MADV_RANDOM       1

arch/i386/bits/mman.h

@@ -16,6 +16,7 @@
 #define MAP_ANON       0x20
 #define MAP_ANONYMOUS  MAP_ANON
 #define MAP_32BIT      0x40
+#define MAP_NORESERVE  0x4000
 
 #define POSIX_MADV_NORMAL       0
 #define POSIX_MADV_RANDOM       1

arch/microblaze/bits/mman.h

@@ -16,6 +16,7 @@
 #define MAP_ANON       0x20
 #define MAP_ANONYMOUS  MAP_ANON
 #define MAP_32BIT      0x40
+#define MAP_NORESERVE  0x4000
 
 #define POSIX_MADV_NORMAL       0
 #define POSIX_MADV_RANDOM       1

arch/mips/bits/mman.h

@@ -15,6 +15,7 @@
 #define MAP_FILE       0x00
 #define MAP_ANON       0x800
 #define MAP_ANONYMOUS  MAP_ANON
+#define MAP_NORESERVE  0x0400
 
 #define POSIX_MADV_NORMAL       0
 #define POSIX_MADV_RANDOM       1

arch/powerpc/bits/mman.h

@@ -16,6 +16,7 @@
 #define MAP_ANON       0x20
 #define MAP_ANONYMOUS  MAP_ANON
 #define MAP_32BIT      0x40
+#define MAP_NORESERVE  0x40
 
 #define POSIX_MADV_NORMAL       0
 #define POSIX_MADV_RANDOM       1

arch/x86_64/bits/mman.h

@@ -16,6 +16,7 @@
 #define MAP_ANON       0x20
 #define MAP_ANONYMOUS  MAP_ANON
 #define MAP_32BIT      0x40
+#define MAP_NORESERVE  0x4000
 
 #define POSIX_MADV_NORMAL       0
 #define POSIX_MADV_RANDOM       1