Add missed thread safety annotations

This is needed for upcoming commit "sync.h: Make runtime lock checks
require compile-time lock checks" to pass.

src/wallet/scriptpubkeyman.h

@@ -535,7 +535,7 @@ private:
     //! keeps track of whether Unlock has run a thorough check before
     bool m_decryption_thoroughly_checked = false;
 
-    bool AddDescriptorKeyWithDB(WalletBatch& batch, const CKey& key, const CPubKey &pubkey);
+    bool AddDescriptorKeyWithDB(WalletBatch& batch, const CKey& key, const CPubKey &pubkey) EXCLUSIVE_LOCKS_REQUIRED(cs_desc_man);
 
     KeyMap GetKeys() const EXCLUSIVE_LOCKS_REQUIRED(cs_desc_man);
 

src/wallet/wallet.h

@@ -1285,7 +1285,7 @@ public:
     void LoadActiveScriptPubKeyMan(uint256 id, OutputType type, bool internal);
 
     //! Create new DescriptorScriptPubKeyMans and add them to the wallet
-    void SetupDescriptorScriptPubKeyMans();
+    void SetupDescriptorScriptPubKeyMans() EXCLUSIVE_LOCKS_REQUIRED(cs_wallet);
 
     //! Return the DescriptorScriptPubKeyMan for a WalletDescriptor if it is already in the wallet
     DescriptorScriptPubKeyMan* GetDescriptorScriptPubKeyMan(const WalletDescriptor& desc) const;