[S390] rename NT_PRXSTATUS to NT_S390_HIGHREGS

The elf notes number for the upper register halves is s390 specific.
Change the name of the elf notes to include S390.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/include/linux/elf.h b/include/linux/elf.h
index 90a4ed0..0cc4d55 100644
--- a/include/linux/elf.h
+++ b/include/linux/elf.h
@@ -361,7 +361,7 @@
 #define NT_PPC_VSX	0x102		/* PowerPC VSX registers */
 #define NT_386_TLS	0x200		/* i386 TLS slots (struct user_desc) */
 #define NT_386_IOPERM	0x201		/* x86 io permission bitmap (1=deny) */
-#define NT_PRXSTATUS	0x300		/* s390 upper register halves */
+#define NT_S390_HIGH_GPRS	0x300	/* s390 upper register halves */
 
 
 /* Note header in a PT_NOTE section */