DO NOT MERGE Fix potential DoS caused by delivering signal to BT process

Bug: 28885210
Change-Id: I63866d894bfca47464d6e42e3fb0357c4f94d360

 Conflicts:
	btif/co/bta_hh_co.c
	btif/src/btif_core.c
Merge conflict resolution of ag/1161415 (referencing ag/1164670)
- Directly into mnc-mr2-release

static char * adev_get_parameters(const struct audio_hw_device *dev,
 const char *keys)
{
 struct str_parms *parms;
    UNUSED(dev);

    FNLOG();

    parms = str_parms_create_str(keys);

    str_parms_dump(parms);

    str_parms_destroy(parms);

 return strdup("");
}

static char * adev_get_parameters(const struct audio_hw_device *dev,
 const char *keys)
{
 struct str_parms *parms;
    UNUSED(dev);

    FNLOG();

    parms = str_parms_create_str(keys);

    str_parms_dump(parms);

    str_parms_destroy(parms);

 return strdup("");
}
