wlan: reprogram DXE registers if they go out of synch

TX Data stalls are observed when the DXE channel registers
are not programmed with valid DXE descriptors. Whenever
a TX stall is detected try to check if the DXE registers
are programmed correctly, if they are not, re-program them.

Change-Id: Idf35009f21567d8f9cff502198c6c1569c6b6d9c
CRs-Fixed: 609227
(cherry picked from commit 366db93e19f319417be6dc1df3aa7e5243d11053)
9 files changed
tree: 3965b498fefb5b22083134da761f072b794fece1
  1. CORE/
  2. firmware_bin/
  3. prima/
  4. riva/
  5. Android.mk
  6. Kbuild
  7. Kconfig