mmc: sdhci-pci-o2micro: Fix spelling mistake "unsupport" -> "unsupported"

There is a spelling mistake in a pr_info message. Fix it. Also
put msi in capital letters.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Link: https://lore.kernel.org/r/20210924225111.143112-1-colin.king@canonical.comSigned-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/host/sdhci-pci-o2micro.c

@@ -489,7 +489,7 @@ static void sdhci_pci_o2_enable_msi(struct sdhci_pci_chip *chip,
 
 	ret = pci_find_capability(chip->pdev, PCI_CAP_ID_MSI);
 	if (!ret) {
-		pr_info("%s: unsupport msi, use INTx irq\n",
+		pr_info("%s: unsupported MSI, use INTx irq\n",
 			mmc_hostname(host->mmc));
 		return;
 	}