[bluez/bluez] faa9d5: lib: Add bt_realloc

[bluez/bluez] faa9d5: lib: Add bt_realloc

[hudsonzuo]

  Branch: refs/heads/1133053
  Home:   https://github.com/bluez/bluez
  Commit: faa9d5c52f9083c39c6bae7c3eef18de3b6910f9
      https://github.com/bluez/bluez/commit/faa9d5c52f9083c39c6bae7c3eef18de3b6910f9
  Author: zuohsh <zuohongsheng@kylinos.cn>
  Date:   2026-07-23 (Thu, 23 Jul 2026)

  Changed paths:
    M lib/bluetooth/bluetooth.c
    M lib/bluetooth/bluetooth.h
    M lib/bluetooth/sdp.c
    M src/shared/ad.c
    M src/shared/bap.c

  Log Message:
  -----------
  lib: Add bt_realloc

Add a bt_realloc wrapper that takes a pointer-to-pointer and only updates
the original on success, so that a failed realloc cannot leak the
existing buffer or leave a NULL pointer for the caller to dereference.

shared/ad: use bt_realloc in bt_ad_add_data(),
           bt_ad_add_manufacturer_data() and  bt_ad_add_service_data().
shared/bap: use  bt_realloc in ascs_ase_rsp_add().
lib/sdp: use bt_realloc in sdp_service_attr_req(), sdp_process() and
        sdp_service_search_attr_req().



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