If the optional "axi" clk is deferred, we still need to undo some
initialisation. Especially 'master' must be released. It will be
reallocated the next time 'orion_spi_probe()' is called.

Add a new label to clean what needs to be cleaned and rename another
label to improve the names used.

Fixes: 92ae112e ("spi: orion: Fix clock resource by adding an optional bus clock")
Signed-off-by: NChristophe JAILLET <christophe.jaillet@wanadoo.fr>
Acked-by: NGregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: NMark Brown <broonie@kernel.org>