crypto: caam - fix PM operations definition

The newly added PM operations use the deprecated SIMPLE_DEV_PM_OPS() macro,
causing a warning in some configurations:

drivers/crypto/caam/ctrl.c:828:12: error: 'caam_ctrl_resume' defined but not used [-Werror=unused-function]
  828 | static int caam_ctrl_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~~~
drivers/crypto/caam/ctrl.c:818:12: error: 'caam_ctrl_suspend' defined but not used [-Werror=unused-function]
  818 | static int caam_ctrl_suspend(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~
drivers/crypto/caam/jr.c:732:12: error: 'caam_jr_resume' defined but not used [-Werror=unused-function]
  732 | static int caam_jr_resume(struct device *dev)
      |            ^~~~~~~~~~~~~~
drivers/crypto/caam/jr.c:687:12: error: 'caam_jr_suspend' defined but not used [-Werror=unused-function]
  687 | static int caam_jr_suspend(struct device *dev)
      |            ^~~~~~~~~~~~~~~

Use the normal DEFINE_SIMPLE_DEV_PM_OPS() variant now, and use pm_ptr() to
completely eliminate the structure in configs without CONFIG_PM.

Fixes: 322d7475 ("crypto: caam - add power management support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>