[qca-nss-dp] Do not overwrite reset values

Do not overwrite reset values for EDMA control registers.
Only write the registers related to enabling the rings and ports.

Change-Id: I8a9c07f72dfcf9d0f1b08bedd73953391efc4f81
Signed-off-by: Selin Dag <sdag@codeaurora.org>
1 file changed