samples: semtech sleep at application init

[ktaborowski]

samples: add sid pal radio sleep on init
KRKNWK-19545

CI parameters

Github_actions:
  #(branch, hash, pull/XXX/head)
  NRF_revision: main

  # Do not change after creating PR
  Create_NRF_PR: false
Jenkins:
  test-sdk-sidewalk: master

Description

JIRA ticket:

Self review

• There is no commented code.
• There are no TODO/FIXME comments without associated issue ticket.
• Commits are properly organized.
• Change has been tested.
• Tests were updated (if applicable).

[github-actions]

Sample		diff	used	total
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.hello.ble_only	RAM	0 B	91.57 KB	0 B
	ROM	16 B	316.34 KB	0 B
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.hello.release	RAM	276 B	101.99 KB	0 B
	ROM	36 B	323.86 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.demo	RAM	276 B	117.35 KB	0 B
	ROM	120 B	445.74 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.demo.ble_only	RAM	0 B	102.3 KB	0 B
	ROM	16 B	368 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.dut	RAM	276 B	141.1 KB	0 B
	ROM	132 B	511.32 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.dut.no_secure	RAM	276 B	141.09 KB	0 B
	ROM	132 B	503.63 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.hello	RAM	276 B	118.8 KB	0 B
	ROM	120 B	460.77 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.hello.ble_only	RAM	0 B	92.35 KB	0 B
	ROM	16 B	366.32 KB	0 B
nrf54l15dk/nrf54l15/cpuapp:sample.sidewalk.hello.release	RAM	276 B	102.77 KB	0 B
	ROM	36 B	372.89 KB	0 B
thingy53/nrf5340/cpuapp:sample.sidewalk.demo.ble_only	RAM	0 B	106.32 KB	0 B
	ROM	16 B	351.52 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.demo	RAM	276 B	118.27 KB	0 B
	ROM	128 B	450.8 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.demo.ble_only	RAM	0 B	102.93 KB	0 B
	ROM	24 B	368.32 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.dut	RAM	276 B	141.92 KB	0 B
	ROM	140 B	515.87 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.dut.no_secure	RAM	276 B	141.89 KB	0 B
	ROM	140 B	507.33 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.hello	RAM	276 B	119.5 KB	0 B
	ROM	124 B	465.82 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.hello.ble_only	RAM	0 B	92.76 KB	0 B
	ROM	24 B	366.67 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.hello.ble_only.release	RAM	0 B	87.95 KB	0 B
	ROM	8 B	299.41 KB	0 B
nrf52840dk/nrf52840:sample.sidewalk.hello.release	RAM	276 B	103.3 KB	0 B
	ROM	44 B	378.38 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.demo	RAM	276 B	111.75 KB	0 B
	ROM	120 B	395.57 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.demo.ble_only	RAM	0 B	96.56 KB	0 B
	ROM	16 B	311.97 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.dut	RAM	276 B	135.52 KB	0 B
	ROM	132 B	461.39 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.dut.no_secure	RAM	276 B	135.5 KB	0 B
	ROM	132 B	453.93 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.hello	RAM	276 B	113.25 KB	0 B
	ROM	120 B	410.87 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.hello.ble_only	RAM	0 B	86.64 KB	0 B
	ROM	16 B	310.55 KB	0 B
nrf5340dk/nrf5340/cpuapp:sample.sidewalk.hello.release	RAM	276 B	97.19 KB	0 B
	ROM	36 B	320.81 KB	0 B
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.demo	RAM	276 B	116.57 KB	0 B
	ROM	120 B	395.76 KB	0 B
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.demo.ble_only	RAM	0 B	101.53 KB	0 B
	ROM	16 B	318.02 KB	0 B
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.dut	RAM	276 B	140.32 KB	0 B
	ROM	132 B	461.56 KB	0 B
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.dut.no_secure	RAM	276 B	140.32 KB	0 B
	ROM	136 B	458.86 KB	0 B
nrf54l15dk/nrf54l15/cpuapp/ns:sample.sidewalk.hello	RAM	276 B	118.02 KB	0 B
	ROM	116 B	410.77 KB	0 B

[totyz]

LQTM