mmc: alcor: fix return value check of mmc_add_host()
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v6.0.16 by commit 48dc06333d75f41c2ce9ba954bc3231324b45914, it was introduced in version v5.0 by commit c5413ad815a675b5c98a002353d8e96b44b164e9. For more details please see the references link.