oniro-linux.conf: Address the issue reference after its rename

Signed-off-by: Andrei Gherzan <andrei.gherzan@huawei.com>

meta-oniro-core/conf/distro/oniro-linux.conf

@@ -85,7 +85,7 @@ PREFERRED_PROVIDER_virtual/kernel_qemu-generic-arm64 = "linux-oniro"
 # kernel from a squashfs image.
 #
 # FIXME: allow GRUB to update the CPU microcode
-# https://booting.oniroproject.org/distro/oniro/-/issues/247
+# https://gitlab.eclipse.org/eclipse/oniro-core/oniro/-/issues/508
 EFI_PROVIDER = "grub-efi"
 # Add EFI to x86{,-64} QEMU machine features.
 MACHINE_FEATURES:qemux86-64 += "efi"