arm: mvebu: avoid possible NULL dereference

It does not make sense to check if info is NULL after
dereferencing it.

The problem was indicated by cppcheck.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Stefan Roese <sr@denx.de>

arch/arm/mach-mvebu/serdes/axp/high_speed_env_lib.c

@@ -354,16 +354,16 @@ int serdes_phy_config(void)
 	}
 
 	info = board_serdes_cfg_get(PEX_MODE_GET(satr11));
-	DEBUG_INIT_FULL_S("info->line0_7= 0x");
-	DEBUG_INIT_FULL_D(info->line0_7, 8);
-	DEBUG_INIT_FULL_S("   info->line8_15= 0x");
-	DEBUG_INIT_FULL_D(info->line8_15, 8);
-	DEBUG_INIT_FULL_S("\n");
 
 	if (info == NULL) {
 		DEBUG_INIT_S("Hight speed PHY Error #1\n");
 		return MV_ERROR;
 	}
+	DEBUG_INIT_FULL_S("info->line0_7= 0x");
+	DEBUG_INIT_FULL_D(info->line0_7, 8);
+	DEBUG_INIT_FULL_S("   info->line8_15= 0x");
+	DEBUG_INIT_FULL_D(info->line8_15, 8);
+	DEBUG_INIT_FULL_S("\n");
 
 	if (config_module & ETM_MODULE_DETECT) {	/* step 0.9 ETM */
 		DEBUG_INIT_FULL_S("ETM module detect Step 0.9:\n");