Use the correct size key
Use the correct size key

At this point, userdata_size has been converted to partition_size in
build_image.ImagePropFromGlobalDict().

Change-Id: Ida6be1905ca3109c2660274a16359a9f3fbcd94d

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build