fix(ble/bluedroid): Null/range checks, crypto cleanup and API consistency

- smp_api.h/smp_int.h: SMP_OPCODE_ARRAY_SIZE and SecureConnectionOobDataReply
  declaration alignment
- p_256_ecc_pp/p_256_multprecision: bounds and overflow fixes in ECC/multiprecision
- smp_act: init le_key; p_dev_rec null check in smp_key_distribution;
  smp_compute_dhkey failure notify in smp_both_have_public_keys
- smp_api: early state/cb_evt check in SMP_SecureConnectionOobDataReply
- smp_cmac: input/length validation in cmac_aes_k_calculate and
  aes_cipher_msg_auth_code
- smp_keys: smp_gen_p2_4_confirm return and smp_calculate_comfirm_cont;
  smp_process_private_key/smp_compute_dhkey cleanup and peer_pub_be clear
- smp_l2c: fix callback param types with L2CAP
- smp_main: event/state bounds in smp_sm_event; smp_get_event_name default string
- smp_utils: cmd_code<SMP_OPCODE_ARRAY_SIZE and smp_cmd_build_act check;
  smp_mask_enc_key/smp_command_has_invalid_parameters bounds

components/bt/host/bluedroid/stack/include/stack/smp_api.h

@@ -48,6 +48,7 @@
 #define SMP_OPCODE_MAX                    SMP_OPCODE_PAIR_KEYPR_NOTIF
 #define SMP_OPCODE_MIN                    SMP_OPCODE_PAIRING_REQ
 #define SMP_OPCODE_PAIR_COMMITM           0x0F
+#define SMP_OPCODE_ARRAY_SIZE             (SMP_OPCODE_PAIR_COMMITM + 1)
 // #endif
 
 /* SMP event type */
@@ -465,10 +466,10 @@ extern void SMP_SecureConnectionOobDataReply(UINT8 *p_data);
 ** Description      This function is called to encrypt the data with the specified
 **                  key
 **
-** Parameters:      key                 - Pointer to key key[0] conatins the MSB
+** Parameters:      key                 - Pointer to key key[0] contains the MSB
 **                  key_len             - key length
 **                  plain_text          - Pointer to data to be encrypted
-**                                        plain_text[0] conatins the MSB
+**                                        plain_text[0] contains the MSB
 **                  pt_len              - plain text length
 **                  p_out               - pointer to the encrypted outputs
 **