DO NOT MERGE Initialize local variable in gatts_process_read_by_type_req

Bug: 73125709
Test: manual
Change-Id: I8b3346f605e0820385ea5ed7401bbee664fd15aa
(cherry picked from commit 0e34139d7fa338df6c99aaba13eb839a3dbc2548)
diff --git a/stack/gatt/gatt_sr.cc b/stack/gatt/gatt_sr.cc
index 06c9c52..f9e8f53 100644
--- a/stack/gatt/gatt_sr.cc
+++ b/stack/gatt/gatt_sr.cc
@@ -788,7 +788,8 @@
 void gatts_process_read_by_type_req(tGATT_TCB& tcb, uint8_t op_code,
                                     uint16_t len, uint8_t* p_data) {
   tBT_UUID uuid;
-  uint16_t s_hdl, e_hdl, err_hdl = 0;
+  uint16_t s_hdl = 0, e_hdl = 0, err_hdl = 0;
+  if (len < 4) android_errorWriteLog(0x534e4554, "73125709");
   tGATT_STATUS reason =
       gatts_validate_packet_format(op_code, len, p_data, &uuid, s_hdl, e_hdl);