Free p_pending_data from tBNEP_CONN to avoid potential memory leaks

Bug: 63146105
Test: External script
Change-Id: I1281779ccf38d1d2dfb1a6dc0e45c0e533cabbca
Merged-In: I1281779ccf38d1d2dfb1a6dc0e45c0e533cabbca
(cherry picked from commit 4982eb5df30cbcbee5c8b8807be95fdc6dfa63c5)
(cherry picked from commit a654681c5558904a8abfa1bbab8eafb651c13231)
(cherry picked from commit 64a12d3b6e71d9161837f28ce18c34d924c2bafc)
(cherry picked from commit 8f18afd26c02ae3d46bf14d6e36017965dee0394)
(cherry picked from commit f8fc7f7d112d5ff2064aaaa3c7fceb077169183e)
diff --git a/stack/bnep/bnep_main.c b/stack/bnep/bnep_main.c
index 6d3684e..36b76a1 100644
--- a/stack/bnep/bnep_main.c
+++ b/stack/bnep/bnep_main.c
@@ -575,6 +575,7 @@
             p_bcb->con_state != BNEP_STATE_CONNECTED &&
             extension_present && p && rem_len)
         {
+            osi_free(p_bcb->p_pending_data);
             p_bcb->p_pending_data = (BT_HDR *)osi_malloc(rem_len + sizeof(BT_HDR));
             memcpy((UINT8 *)(p_bcb->p_pending_data + 1), p, rem_len);
             p_bcb->p_pending_data->len    = rem_len;
diff --git a/stack/bnep/bnep_utils.c b/stack/bnep/bnep_utils.c
index f11c6c8..a0c8846 100644
--- a/stack/bnep/bnep_utils.c
+++ b/stack/bnep/bnep_utils.c
@@ -154,6 +154,7 @@
 
     /* Drop any response pointer we may be holding */
     p_bcb->con_state        = BNEP_STATE_IDLE;
+    osi_free(p_bcb->p_pending_data);
     p_bcb->p_pending_data   = NULL;
 
     /* Free transmit queue */