test printf: Add very basic struct resource tests

test printf: Add very basic struct resource tests

The printf tests for struct resource were stubbed out.  struct range
printing will leverage the struct resource implementation.

To prevent regression add some basic sanity tests for struct resource.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Fan Ni <fan.ni@samsung.com>
Tested-by: Fan Ni <fan.ni@samsung.com>
Acked-by: Petr Mladek <pmladek@suse.com>
Link: https://patch.msgid.link/20241007-dcd-type2-upstream-v4-1-c261ee6eeded@intel.com
Tested-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Link: https://patch.msgid.link/20241025-cxl-pra-v2-1-123a825daba2@intel.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>