remoteproc/omap: Switch to SPDX license identifiers

Use the appropriate SPDX license identifiers in various OMAP remoteproc
source files and drop the previous boilerplate license text.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Andrew F. Davis <afd@ti.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200324110035.29907-16-t-kristo@ti.com


Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>