cassini-config: Remove kernel patch for KV260
After latest poky updates, linux-yocto has a spelling fix in Freescale platform dts file. In KV260 local.conf, this change removes a kernel patch from meta-ledge-secure that still uses the old spelling until the layer is updated. The patch is unrelated to KV260.
Signed-off-by: Mariam Elshakfy mariam.elshakfy@linaro.org