Fix Doxygen comment in hypercall.h header file
Fix a Doxygen comment in the hypercall.h header file which is
missing the name of the parameter, this is causing warnings when
generating the documentation related to the
hcall_set_callback_vector() hypercall.
@@ -463,7 +463,7 @@ int64_t hcall_save_restore_sworld_ctx(struct vcpu *vcpu);
* to notify the SOS kernel.
*
* @param vm Pointer to VM data structure
- * @param the expected notifier vector from guest
+ * @param param the expected notifier vector from guest
*
* @pre Pointer vm shall point to VM0
* @return 0 on success, non-zero on error.
