dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()

dmaengine: mv_xor_v2: Fix a resource leak in mv_xor_v2_remove()

[ Upstream commit 051a4268c63c47fcc93aef515eaae7f0ccc0235d ]

A clk_prepare_enable() call in the probe is not balanced by a corresponding
clk_disable_unprepare() in the remove function.

Add the missing call.

Fixes: 6aac7fdd554c ("dmaengine: mv_xor_v2: Fix clock resource by adding a register clock")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e9e3837a680c9bd2438e4db2b83270c6c052d005.1666640987.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>