hppa: put custom madvise defines behind __USE_MISC

No other arch exports these defines, and having them in the default
namespace causes conformance header tests to fail.  Put them behind
the __USE_MISC define as that is what other arches seem to use.

ChangeLog

@@ -1,3 +1,8 @@
+2015-08-09  Mike Frysinger  <vapier@gentoo.org>
+
+	* sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_MISC]: Move all
+	MADV_*_PAGES defines behind this feature check.
+
 2015-08-09  John David Anglin  <danglin@gcc.gnu.org>
 
 	[BZ #18480]

sysdeps/unix/sysv/linux/hppa/bits/mman.h

@@ -93,14 +93,17 @@
 #endif
 
 /* The range 12-64 is reserved for page size specification. */
-#define MADV_4K_PAGES   12              /* Use 4K pages  */
-#define MADV_16K_PAGES  14              /* Use 16K pages */
-#define MADV_64K_PAGES  16              /* Use 64K pages */
-#define MADV_256K_PAGES 18              /* Use 256K pages */
-#define MADV_1M_PAGES   20              /* Use 1 Megabyte pages */
-#define MADV_4M_PAGES   22              /* Use 4 Megabyte pages */
-#define MADV_16M_PAGES  24              /* Use 16 Megabyte pages */
-#define MADV_64M_PAGES  26              /* Use 64 Megabyte pages */
+/* These are Linux-specific.  */
+#ifdef __USE_MISC
+# define MADV_4K_PAGES		12	/* Use 4K pages.  */
+# define MADV_16K_PAGES		14	/* Use 16K pages.  */
+# define MADV_64K_PAGES		16	/* Use 64K pages.  */
+# define MADV_256K_PAGES	18	/* Use 256K pages.  */
+# define MADV_1M_PAGES		20	/* Use 1 Megabyte pages.  */
+# define MADV_4M_PAGES		22	/* Use 4 Megabyte pages.  */
+# define MADV_16M_PAGES		24	/* Use 16 Megabyte pages.  */
+# define MADV_64M_PAGES		26	/* Use 64 Megabyte pages.  */
+#endif
 
 /* The POSIX people had to invent similar names for the same things.  */
 #ifdef __USE_XOPEN2K