samples: dect_phy: dect_shell: increased main stack

Doubled main stack size to avoid stack overflow when using
CONFIG_NRF_MODEM_LIB_TRACE.
Jira: MOSH-626

Signed-off-by: Jani Hirsimäki <[email protected]>

Author: jhirsi

samples/dect/dect_phy/dect_shell/prj.conf

@@ -15,8 +15,10 @@ CONFIG_AT_SHELL=y
 # -h and --help options are handled in Dect Shell
 CONFIG_SHELL_HELP_OPT_PARSE=n
 CONFIG_SHELL_CMD_BUFF_SIZE=1024
-# Shell stack has impact for DECT shell application, not CONFIG_MAIN_STACK_SIZE
+# Shell stack has most impact for DECT shell application, not CONFIG_MAIN_STACK_SIZE
 CONFIG_SHELL_STACK_SIZE=9216
+# Main stack size need to be increased due to CONFIG_NRF_MODEM_LIB_TRACE
+CONFIG_MAIN_STACK_SIZE=2048
 
 # Shell RX buffer needs to be increased to avoid problems with test automation
 CONFIG_SHELL_BACKEND_SERIAL_RX_RING_BUFFER_SIZE=512