Fix sub-HAL handle in dynamic sensor meta events

Need to apply the sub-HAL index byte to ensure handles provided in
DYNAMIC_SENSOR_META events align properly with the [dis]connected
callbacks.

Bug: 228879057
Test: try on device with dynamic sensors sub-HAL at index > 0
Change-Id: Ic7290b51733bb829a5494ef41e9430b51dc6074e