spi: spi-cadence: Fix kernel-doc format for resume/suspend

spi: spi-cadence: Fix kernel-doc format for resume/suspend

Kernel function name don't match with function name.

Error log:
drivers/spi/spi-cadence.c:661: warning: expecting prototype for
cdns_spi_runtime_resume(). Prototype was for cnds_runtime_resume() instead
drivers/spi/spi-cadence.c:690: warning: expecting prototype for
cdns_spi_runtime_suspend(). Prototype was for cnds_runtime_suspend()
instead

Fixes: d36ccd9f7ea4 ("spi: cadence: Runtime pm adaptation")
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Link: https://lore.kernel.org/r/20220322150018.12736-1-amit.kumar-mahapatra@xilinx.com
Signed-off-by: Mark Brown <broonie@kernel.org>