Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 3bc72d1..8f3faf3 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -351,7 +351,7 @@
 	 * To handle different BIOS behavior, we look for _OSC on a root
 	 * bridge preferentially (according to PCI fw spec). Later for
 	 * OSHP within the scope of the hotplug controller and its parents,
-	 * upto the host bridge under which this controller exists.
+	 * up to the host bridge under which this controller exists.
 	 */
 	handle = acpi_find_root_bridge_handle(pdev);
 	if (handle) {