docs: fix simple typo, capbilities -> capabilities

There is a small typo in teensy3/usb_desc.c, teensy4/usb_desc.c.

Should read `capabilities` rather than `capbilities`.

teensy3/usb_desc.c

@@ -600,7 +600,7 @@ static uint8_t flightsim_report_desc[] = {
 // **************************************************************
 
 // USB Configuration Descriptor.  This huge descriptor tells all
-// of the devices capbilities.
+// of the devices capabilities.
 static uint8_t config_descriptor[CONFIG_DESC_SIZE] = {
         // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10
         9,                                      // bLength;

teensy4/usb_desc.c

@@ -650,7 +650,7 @@ static uint8_t flightsim_report_desc[] = {
 // **************************************************************
 
 // USB Configuration Descriptor.  This huge descriptor tells all
-// of the devices capbilities.
+// of the devices capabilities.
 
 PROGMEM const uint8_t usb_config_descriptor_480[CONFIG_DESC_SIZE] = {
         // configuration descriptor, USB spec 9.6.3, page 264-266, Table 9-10