Merge "Allow map_file_generator to use host tools"

define copy-image-and-generate-map

  mkdir -p $(2)

  cp $(1) $(2)

  $(if $(3),$(HOST_OUT_EXECUTABLES)/map_file_generator $(1) $(2)/$(3))

  $(if $(3),

    UNSQUASHFS=$(HOST_OUT_EXECUTABLES)/unsquashfs $(HOST_OUT_EXECUTABLES)/map_file_generator $(1) $(2)/$(3)

  )

endef

# By conditionally including the dependency of the target files package on the