This enum value is used only to distinguish suecreek from other
platforms, which can be done also by platform name.
Manual enumeration, in separate toml files with manual synchronization
in enum definition is quite error prone. After commit
9bf46d3: "rimage: Add support for mt8195" and
9716e10: "config: Add imx8ulp.toml" there are two different
platform with the same enum value 15 specified, which proves such a
thesis.
Signed-off-by: Karol Trzcinski <karolx.trzcinski@linux.intel.com>