reset: starfive: jh71x0: Fix accessing the empty member on JH7110 SoC

data->asserted will be NULL on JH7110 SoC since commit 82327b127d41
("reset: starfive: Add StarFive JH7110 reset driver") was added. Add
the judgment condition to avoid errors when calling reset_control_status
on JH7110 SoC.

Fixes: 82327b127d41 ("reset: starfive: Add StarFive JH7110 reset driver")
Signed-off-by: Changhuang Liang <[e-mail]>
Acked-by: Hal Feng <[e-mail]>
Reviewed-by: Philipp Zabel <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Philipp Zabel <[e-mail]>

drivers/reset/starfive/reset-starfive-jh71x0.c

···
 	void __iomem *reg_status = data->status + offset * sizeof(u32);
 	u32 value = readl(reg_status);
 
+	if (!data->asserted)
+		return !(value & mask);
+
 	return !((value ^ data->asserted[offset]) & mask);
 }