Fix warning message refering to layers instead of ICDs

The warning message about the binary having the wrong bitness for
ICD's was wrongly stating it was about layers having the wrong
bitness.

loader/loader.c

@@ -3654,7 +3654,7 @@ VkResult loader_icd_scan(const struct loader_instance *inst, struct loader_icd_t
                                icd_details[i].full_library_path);
                     break;
                 case LOADER_LAYER_LIB_ERROR_WRONG_BIT_TYPE: {
-                    loader_log(inst, VULKAN_LOADER_DRIVER_BIT, 0, "Requested layer %s was wrong bit-type. Ignoring this JSON",
+                    loader_log(inst, VULKAN_LOADER_DRIVER_BIT, 0, "Requested ICD %s was wrong bit-type. Ignoring this JSON",
                                icd_details[i].full_library_path);
                     break;
                 }