applications: nrf_desktop: Use Picolibc in IPC radio image

Change updates IPC radio image configurations of the nRF5340 DK to use
Picolibc. This aligns the configurations to the IPC radio image
configurations of the nRF54H20 DK. The Picolibc is used by default in
Zephyr.

Jira: NCSDK-32238

Signed-off-by: Marek Pieta <[email protected]>
Signed-off-by: Pekka Niskanen <[email protected]>

Author: MarekPieta

applications/nrf_desktop/configuration/nrf5340dk_nrf5340_cpunet/images/ipc_radio/prj.conf

@@ -30,9 +30,6 @@ CONFIG_BT_CTLR_SDC_MAX_CONN_EVENT_LEN_DEFAULT=3000
 
 CONFIG_ASSERT=y
 
-# Use minimal C library instead of the Picolib
-CONFIG_MINIMAL_LIBC=y
-
 # Activate Link Time Optimization (LTO)
 CONFIG_LTO=y
 CONFIG_ISR_TABLES_LOCAL_DECLARATION=y

applications/nrf_desktop/configuration/nrf5340dk_nrf5340_cpunet/images/ipc_radio/prj_release.conf

@@ -28,9 +28,6 @@ CONFIG_BT_BUF_ACL_TX_SIZE=35
 CONFIG_BT_CTLR_DATA_LENGTH_MAX=35
 CONFIG_BT_CTLR_SDC_MAX_CONN_EVENT_LEN_DEFAULT=3000
 
-# Use minimal C library instead of the Picolib
-CONFIG_MINIMAL_LIBC=y
-
 # Activate Link Time Optimization (LTO)
 CONFIG_LTO=y
 CONFIG_ISR_TABLES_LOCAL_DECLARATION=y

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -261,6 +261,9 @@ nRF Desktop
     If you still need to support the Bluetooth LE legacy pairing, you need to disable the option in the configuration.
   * :ref:`nrf_desktop_hid_state` and :ref:`nrf_desktop_fn_keys` to use :c:func:`bsearch` implementation from C library.
     This simplifies maintenance and allows you to use Picolibc (:kconfig:option:`CONFIG_PICOLIBC`).
+  * The IPC radio image configurations of the nRF5340 DK to use Picolibc (:kconfig:option:`CONFIG_PICOLIBC`).
+    This aligns the configurations to the IPC radio image configurations of the nRF54H20 DK.
+    Picolibc is used by default in Zephyr.
 
 * Added: