Fix python unittest not installing amd-smi-lib-test package install

Moving to TESTS_COMPONENT allows files to be placed
within the amd-smi-lib-test package.
Previously, was put within the amd-smi-lib package,
which will never be triggered for installation with
latest changes.

Change-Id: Id49dbe69bfc7d5bd1af403c28b946fe1edf64d8e
Signed-off-by: Charis Poag <Charis.Poag@amd.com>

tests/python_unittest/CMakeLists.txt

@@ -19,7 +19,7 @@ message("--------CPACK_COMPONENT_INCLUDE_TOPLEVEL_DIRECTORY: " ${CPACK_COMPONENT
 install(
     DIRECTORY ./
     DESTINATION ${SHARE_INSTALL_PREFIX}/tests/python_unittest/
-    COMPONENT dev
+    COMPONENT ${TESTS_COMPONENT}
     USE_SOURCE_PERMISSIONS
     FILES_MATCHING
     PATTERN "*.py"