update commit number of locales submodule - electrum

commit 7feba2a2000ac11d8b1bdf366e4d6fa05e0cbd52
parent dd42df7577d8453b1df504d198e845dbd5ba83dd
Author: ThomasV <thomasv@electrum.org>
Date:   Fri, 29 Jun 2018 13:18:03 +0200

update commit number of locales submodule

	electrum Electrum Bitcoin wallet
	git clone https://git.parazyd.org/electrum
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