[NXP_UCANS32K146] Increase usermain stack size to prevent init overrun

Author: landonh12

boards/nxp/ucans32k146/nuttx-config/nsh/defconfig

@@ -115,4 +115,5 @@ CONFIG_SYSTEM_I2CTOOL=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_SYSTEM_SPITOOL=y
 CONFIG_USER_ENTRYPOINT="nsh_main"
+CONFIG_USERMAIN_STACKSIZE=2176
 CONFIG_WATCHDOG=y