This commits adds the LE API's for the LE Power Control Request Feature
in Zephyr.
The support of feature is provided with the controller-based feature
selection with BT_CTLR_LE_POWER_CONTROL_SUPPORT and is selectable via
BT_TRANSMIT_POWER_CONTROL.
With the new APIs, the applications will:
get improved reading of local and remote tx power
be aware of changes in remote or local tx power
Defined HCI commands in Core Spec v5.4:
7.8.117 LE Enhanced Read Transmit Power Level command:
improvement to existing local tx power reading.
7.8.118 LE Read Remote Transmit Power Level command:
Remote tx power is read through an event (LE Transmit Power Reporting)
7.8.121 LE Set Transmit Power Reporting Enable command:
Enables local or remote tx power reporting to monitor changes in tx power
7.7.65.33 LE Transmit Power Reporting event
Note: to utilize the Feature fully Nordic-LL-only vendor-specific commands
are needed. These will not be added in RTOS zephyr but instead
implemented in a maintainable way in sdk.
Signed-off-by: Kyra Lengfeld <kyra.lengfeld@nordicsemi.no>
93e5cf6e61