samples: bluetooth: central_hids: Fix crash in system workqueue

This fixes a stack overflow in the system workqueue when the sample is
using the BT_LL_NRFXLIB. The setting is identical to what the
peripheral_hids_* samples are using.

Signed-off-by: Thomas Stenersen <[email protected]>

Author: Thomas Stenersen

samples/bluetooth/central_hids/prj.conf

@@ -17,6 +17,8 @@ CONFIG_BT_SCAN=y
 CONFIG_BT_SCAN_FILTER_ENABLE=y
 CONFIG_BT_SCAN_UUID_CNT=1
 
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
+
 CONFIG_BT_SETTINGS=y
 CONFIG_FLASH=y
 CONFIG_FLASH_PAGE_LAYOUT=y