Add comments suggesting moving some functions to syscalls.list.

sysdeps/unix/sysv/linux/powerpc/chown.c

@@ -25,6 +25,8 @@
 
 #include <kernel-features.h>
 
+/* Consider moving to syscalls.list.  */
+
 /*
   In Linux 2.1.x the chown functions have been changed.  A new function lchown
   was introduced.  The new chown now follows symlinks - the old chown and the

sysdeps/unix/sysv/linux/powerpc/powerpc64/pread.c

@@ -27,6 +27,8 @@
 #include <kernel-features.h>
 
 
+/* Consider moving to syscalls.list.  */
+
 ssize_t
 __libc_pread (fd, buf, count, offset)
      int fd;

sysdeps/unix/sysv/linux/powerpc/powerpc64/pread64.c

@@ -26,6 +26,8 @@
 #include <kernel-features.h>
 
 
+/* Consider moving to syscalls.list.  */
+
 ssize_t
 __libc_pread64 (fd, buf, count, offset)
      int fd;

sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite.c

@@ -27,6 +27,8 @@
 #include <kernel-features.h>
 
 
+/* Consider moving to syscalls.list.  */
+
 ssize_t
 __libc_pwrite (fd, buf, count, offset)
      int fd;

sysdeps/unix/sysv/linux/powerpc/powerpc64/pwrite64.c

@@ -26,6 +26,8 @@
 #include <kernel-features.h>
 
 
+/* Consider moving to syscalls.list.  */
+
 ssize_t
 __libc_pwrite64 (fd, buf, count, offset)
      int fd;