Optionally handle any potential error in vulkan init

Author: DmyMi

ggml/src/ggml-vulkan/ggml-vulkan.cpp

@@ -12726,6 +12726,12 @@ ggml_backend_reg_t ggml_backend_vk_reg() {
     } catch (const vk::SystemError& e) {
         VK_LOG_DEBUG("ggml_backend_vk_reg() -> Error: System error: " << e.what());
         return nullptr;
+    } catch (const std::exception &e) {
+        VK_LOG_DEBUG("ggml_backend_vk_reg() -> Error: " << e.what());
+        return nullptr;
+    } catch (...) {
+        VK_LOG_DEBUG("ggml_backend_vk_reg() -> Error: unknown exception during Vulkan init");
+        return nullptr;
     }
 }