nimble/ll: Add pkg restriction for cputime frequency
It has to be 32768, LL cannot work with other setting.
@@ -317,3 +317,6 @@ syscfg.vals.BLE_LL_CFG_FEAT_LL_EXT_ADV:
# controller code visible when connected to external host
syscfg.vals.!BLE_HOST:
BLE_LL_VND_EVENT_ON_ASSERT: 1
+
+syscfg.restrictions:
+ - OS_CPUTIME_FREQ == 32768
