kconfig: openthread: increase stack size for coprocessor

Coprocessor crashes with stack overflow when turning diagnostic
mode as it needs ~1650B. Increase stack to 2084.

Signed-off-by: Maciej Baczmanski <[email protected]>
(cherry picked from commit 40ceeea)

Author: maciejbaczmanski

subsys/net/openthread/Kconfig

@@ -118,7 +118,7 @@ config OPENTHREAD_MBEDTLS_DEBUG
 
 config OPENTHREAD_THREAD_STACK_SIZE
 	int "OpenThread thread stack size"
-	default 1224 if OPENTHREAD_COPROCESSOR_RCP
+	default 2048 if OPENTHREAD_COPROCESSOR_RCP
 	default 7168 if (OPENTHREAD_COMMISSIONER || OPENTHREAD_JOINER) && PSA_CRYPTO_DRIVER_CRACEN
 	default 6240 if (OPENTHREAD_COMMISSIONER || OPENTHREAD_JOINER)
 	default 6144 if PSA_CRYPTO_DRIVER_CRACEN