linux-processor-sdk_4.1: Switch branch for keystone
linux-processor-sdk_4.1: Switch branch for keystone

* Switch branch to "processor-sdk-linux-next" for early keystone2
  remoteproc patches

Signed-off-by: Jacob Stiffler <0ec61db87821c27ca8ee6f3e24c6f93fdbb785d4@ti.com>

rcn-ee/meta-processor-sdk,rcn-ee/meta-processor-sdk,rcn-ee/meta-processor-sdk