Add rpm License header

Add rpm License header for cpack

Change-Id: I2f4a89015b6389cfde801f41d4f6e0f59e7087aa


[ROCm/rocm_smi_lib commit: ce9cfa584f]

projects/rocm-smi-lib/CMakeLists.txt

@@ -176,6 +176,7 @@ install(EXPORT rocm_smiTargets DESTINATION
   "${ROCM_SMI}/lib/cmake" COMPONENT dev)
 
 #License file
+set(CPACK_RPM_PACKAGE_LICENSE "NCSA")
 install( FILES ${CPACK_RESOURCE_FILE_LICENSE} DESTINATION share/doc/smi-lib RENAME LICENSE.txt)
 
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