clk: mmp: pxa910: fix return value check in pxa910_clk_init()

Fix the retrn value check which testing the wrong variable
in pxa910_clk_init().

Fixes: 2bc61da9f7ff ("clk: mmp: add pxa910 DT support for clock driver")
Signed-off-by: Wei Yongjun <[e-mail]>
Signed-off-by: Stephen Boyd <[e-mail]>

drivers/clk/mmp/clk-of-pxa910.c

···
 	}
 
 	pxa_unit->apmu_base = of_iomap(np, 1);
-	if (!pxa_unit->mpmu_base) {
+	if (!pxa_unit->apmu_base) {
 		pr_err("failed to map apmu registers\n");
 		return;
 	}
···
 	}
 
 	pxa_unit->apbcp_base = of_iomap(np, 3);
-	if (!pxa_unit->mpmu_base) {
+	if (!pxa_unit->apbcp_base) {
 		pr_err("failed to map apbcp registers\n");
 		return;
 	}