Part of the upower management was included in a previous commit [1].
This patch only adds the bits required to properly parse a config file
that would include the binary as follows:
IMAGE PWR upower.bin
[1] 6ec65c8558 (tools: image: support i.MX93)
Signed-off-by: Gary Bisson <bisson.gary@gmail.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>