Bluetooth: can't build with CONFIG_ASSERT disabled when CONFIG_BT_PERIPHERAL is enabled

[MeisterBob]

Describe the bug
When CONFIG_ASSERT is disabled and CONFIG_BT_PERIPHERAL is enabled the bluetooth subsystem fails to build because connectable and adv only get defined when CONFIG_ASSERT is enabled in ticker_update_op_cb()
https://github.com/zephyrproject-rtos/zephyr/blob/658f9357b87ab3e02351a57183743ec70f92cdd7/subsys/bluetooth/controller/ll_sw/ull_adv.c#L2500C2-L2524C2

To Reproduce
see above

Logs and console output

In file included from /home/.../zephyr/subsys/bluetooth/controller/ll_sw/ull_adv.c:68: 
/home/.../zephyr/subsys/bluetooth/controller/ll_sw/ull_adv.c: In function 'ticker_updat
e_op_cb':                                                                                                        
/home/.../zephyr/subsys/bluetooth/controller/ll_sw/ull_adv.c:2519:20: error: 'connectab
le' undeclared (first use in this function)                                                                      
 2519 |                   (connectable && !adv->lll.conn) ||                                                     
      |                    ^~~~~~~~~~~                                                                           
/home/.../zephyr/subsys/bluetooth/controller/./hal/debug.h:13:23: note: in definition o
f macro 'LL_ASSERT'                                                                                              
   13 |                 if (!(cond)) { \                                                                         
      |                       ^~~~                                                                               
/home/.../zephyr/subsys/bluetooth/controller/ll_sw/ull_adv.c:2519:20: note: each undecl
ared identifier is reported only once for each function it appears in                                            
 2519 |                   (connectable && !adv->lll.conn) ||                                                     
      |                    ^~~~~~~~~~~                                                                           
/home/.../zephyr/subsys/bluetooth/controller/./hal/debug.h:13:23: note: in definition o
f macro 'LL_ASSERT'                                                                                              
   13 |                 if (!(cond)) { \                                                                         
      |                       ^~~~                                                                               
/home/.../zephyr/subsys/bluetooth/controller/ll_sw/ull_adv.c:2519:36: error: 'adv' unde
clared (first use in this function)                                                                              
 2519 |                   (connectable && !adv->lll.conn) ||                                                     
      |                                    ^~~                                                                   
/home/.../zephyr/subsys/bluetooth/controller/./hal/debug.h:13:23: note: in definition o
f macro 'LL_ASSERT'                                                                                              
   13 |                 if (!(cond)) { \                                                                         
      |                       ^~~~  

Environment (please complete the following information):

• OS: Linux
• Toolchain Zephyr SDK
• Commit 658f935

[fabiobaltieri]

@MeisterBob any chance you could open a PR to fix it?

[github-actions]

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