feat(fwu): add some sanity checks for the FWU metadata

Add some sanity checks on the values read from the FWU metadata
structure. This ensures that values in the metadata structure are
inline with certain config symbol values.

Change-Id: Ic4415da9048ac3980f8f811ed7852beb90683f7d
Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>
1 file changed