device: Const-ify all device driver instance pointers

Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.

A coccinelle rule is used for this:

@r_const_dev_1
  disable optional_qualifier
@
@@
-struct device *
+const struct device *

@r_const_dev_2
 disable optional_qualifier
@
@@
-struct device * const
+const struct device *

Fixes #27399

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>

kernel/system_work_q.c

diff --git a/kernel/system_work_q.c b/kernel/system_work_q.c
index c80aa1f..46fd1b0 100644
--- a/kernel/system_work_q.c
+++ b/kernel/system_work_q.c
@@ -18,7 +18,7 @@
 
 struct k_work_q k_sys_work_q;
 
-static int k_sys_work_q_init(struct device *dev)
+static int k_sys_work_q_init(const struct device *dev)
 {
 	ARG_UNUSED(dev);