[qca-ssdk]Modify register access delay method

With udelay, CPU utilization will be more high than
with usleep_range, so we use usleep_range to impprove
CPU utilization.

CRs-Fixed: 631988

Change-Id: I6695645158c073ec6de55b28720e25595f8f413e
Signed-off-by: Zou Shunxiang <shunxian@codeaurora.org>
1 file changed
tree: 10775c29a0d408055ba205bedd8b315407d53a3c
  1. app/
  2. include/
  3. make/
  4. src/
  5. ChangeLog
  6. config
  7. ko_Makefile
  8. Makefile