sched/core: Fix htmldocs warnings

Fengguang Wu's kbuild test robot reported the following new htmldocs warnings:

  >>> Warning(kernel/sched/core.c:3380): No description found for parameter 'uattr'
  >>> Warning(kernel/sched/core.c:3380): Excess function parameter 'attr' description in 'sys_sched_setattr'
  >>> Warning(kernel/sched/core.c:3520): No description found for parameter 'uattr'
  >>> Warning(kernel/sched/core.c:3520): Excess function parameter 'attr' description in 'sys_sched_getattr'

The second argument to sys_sched_{setattr,getattr}() is named uattr (not attr).
Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Juri Lelli <juri.lelli@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Dario Faggioli <raistlin@linux.it>
Fixes: d50dde5a ("sched: Add new scheduler syscalls to support an extended scheduling parameters ABI")
Link: http://lkml.kernel.org/r/52D5552D.5000102@gmail.comSigned-off-by: Ingo Molnar <mingo@kernel.org>

kernel/sched/core.c

@@ -3614,7 +3614,7 @@ SYSCALL_DEFINE2(sched_setparam, pid_t, pid, struct sched_param __user *, param)
 /**
  * sys_sched_setattr - same as above, but with extended sched_attr
  * @pid: the pid in question.
- * @attr: structure containing the extended parameters.
+ * @uattr: structure containing the extended parameters.
  */
 SYSCALL_DEFINE2(sched_setattr, pid_t, pid, struct sched_attr __user *, uattr)
 {
@@ -3756,7 +3756,7 @@ static int sched_read_attr(struct sched_attr __user *uattr,
 /**
  * sys_sched_getattr - similar to sched_getparam, but with sched_attr
  * @pid: the pid in question.
- * @attr: structure containing the extended parameters.
+ * @uattr: structure containing the extended parameters.
  * @size: sizeof(attr) for fwd/bwd comp.
  */
 SYSCALL_DEFINE3(sched_getattr, pid_t, pid, struct sched_attr __user *, uattr,