phy: marvell: a3700-comphy: Fix hardcoded array size

[ Upstream commit 62720770 ]

Replace hardcoded 'gbe_phy_init' array size by explicit one.

Fixes: 93433708 ("phy: marvell: phy-mvebu-a3700-comphy: Add native kernel implementation")
Signed-off-by: Mikhail Kobuk <m.kobuk@ispras.ru>
Link: https://lore.kernel.org/r/20240321164734.49273-2-m.kobuk@ispras.ru


Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>