nimble/host: Fix field type for TX Power in GAP event struct
TX Power is a signed value (same as RSSI).
@@ -277,7 +277,7 @@ struct ble_gap_ext_disc_desc {
uint8_t legacy_event_type;
ble_addr_t addr;
int8_t rssi;
- uint8_t tx_power;
+ int8_t tx_power;
uint8_t sid;
uint8_t prim_phy;
uint8_t sec_phy;
