ci: footprint: fix nrf5340dk/nrf5340/cpuapp board name

Fix nrf5340dk/nrf5340/cpuapp board name to align with HWMv2 changes
and resolve build error for its footprint data collection.

Signed-off-by: Dmitrii Golovanov <dmitrii.golovanov@intel.com>

scripts/footprint/plan.txt

@@ -18,7 +18,7 @@ bt_beacon,default,nrf52840dk/nrf52840,samples/bluetooth/beacon,
 bt_peripheral,default,nrf52840dk/nrf52840,samples/bluetooth/peripheral,
 bt_central_hr,default,nrf52840dk/nrf52840,samples/bluetooth/central_hr,
 bt_mesh_demo,default,bbc_microbit,samples/bluetooth/mesh_demo,
-bt_hap_ha,default,nrf5340dk/nrf5340_cpuapp,samples/bluetooth/hap_ha,
+bt_hap_ha,default,nrf5340dk/nrf5340/cpuapp,samples/bluetooth/hap_ha,
 bt_bap_unicast_client,default,nrf5340dk/nrf5340/cpuapp,samples/bluetooth/bap_unicast_client,
 bt_bap_unicast_server,default,nrf5340dk/nrf5340/cpuapp,samples/bluetooth/bap_unicast_server,
 bt_tmap_central,default,nrf5340dk/nrf5340/cpuapp,samples/bluetooth/tmap_central,