docs: time: make separate section for time and timers

Give time & timer APIs their own section and begin adding
entries to that section. Move hrtimers immediately after
this new section so that they are all together.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: John Stultz <jstultz@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Link: https://lore.kernel.org/r/20230704052405.5089-1-rdunlap@infradead.org

Author: rddunlap

Documentation/driver-api/basics.rst

@@ -15,8 +15,8 @@ Driver device table
    :no-identifiers: pci_device_id
 
 
-Delaying, scheduling, and timer routines
-----------------------------------------
+Delaying and scheduling routines
+--------------------------------
 
 .. kernel-doc:: include/linux/sched.h
    :internal:
@@ -33,16 +33,16 @@ Delaying, scheduling, and timer routines
 .. kernel-doc:: include/linux/completion.h
    :internal:
 
-.. kernel-doc:: kernel/time/timer.c
-   :export:
-
-Wait queues and Wake events
----------------------------
+Time and timer routines
+-----------------------
 
-.. kernel-doc:: include/linux/wait.h
+.. kernel-doc:: include/linux/jiffies.h
    :internal:
 
-.. kernel-doc:: kernel/sched/wait.c
+.. kernel-doc:: kernel/time/time.c
+   :export:
+
+.. kernel-doc:: kernel/time/timer.c
    :export:
 
 High-resolution timers
@@ -57,6 +57,15 @@ High-resolution timers
 .. kernel-doc:: kernel/time/hrtimer.c
    :export:
 
+Wait queues and Wake events
+---------------------------
+
+.. kernel-doc:: include/linux/wait.h
+   :internal:
+
+.. kernel-doc:: kernel/sched/wait.c
+   :export:
+
 Internal Functions
 ------------------