Draft: manifest: Add mx93 support
This updates meta-freescale and meta-freescale-distro layers to the state of imx-5.15.71-2.2.0 tag of the imx-manifest, which has i.mx93 support. Then we can integrate that processor into our imx machine layer.
Change-Id: Id8ff14bc7cb067e4452926bc74b5d9d4f0db9bbd