drivers: dma: gpdma: reduce logging verbosity
drivers: dma: gpdma: reduce logging verbosity

Reduce logging verbosity in status call from INF to DBG as the function
can be called any given time i.e. eveything is fine even if the read and
write pointers don't differ.

Signed-off-by: Jaska Uimonen <c4dccdde272e1daf911f0dfa87751f0519a301c4@linux.intel.com>

zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr