efi_loader: efi_var_mem_notify_exit_boot_services

efi_var_mem_notify_exit_boot_services() is invoked when ExitBootServices()
is called by the UEFI payload.

efi_var_mem_notify_exit_boot_services() should not be defined as
__efi_runtime as it is invoking EFI_ENTRY() and EFI_EXIT() which themselves
are not __efi_runtime.

Fixes: f1f990a8c958 ("efi_loader: memory buffer for variables")
Fixes: e01aed47d6a0 ("efi_loader: Enable run-time variable support for tee based variables")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
diff --git a/lib/efi_loader/efi_var_mem.c b/lib/efi_loader/efi_var_mem.c
index 8f4a5a5..1d2b445 100644
--- a/lib/efi_loader/efi_var_mem.c
+++ b/lib/efi_loader/efi_var_mem.c
@@ -211,7 +211,7 @@
  * @event:	callback event
  * @context:	callback context
  */
-static void EFIAPI __efi_runtime
+static void EFIAPI
 efi_var_mem_notify_exit_boot_services(struct efi_event *event, void *context)
 {
 	EFI_ENTRY("%p, %p", event, context);