Update UploadWizard submodule

New changes:
    Fix trivial error in Firefogg upload handling
    I8d1ecca8f5858ed421066fa0de2e088b9b00810c

    Upgrade FDT to use promises instead of old syntax
    Iaf20c08a025039402e498baa24c01fb9e55c4e6b

Change-Id: Icfc6de1d5536e123bfa5dd89a2d1ac23bf2862fe
Merge "Update UploadWizard submodule" into wmf/1.25wmf5