icnss: Allow recursive recovery for WLAN

Recursive recovery is not allowed for WLAN on debug builds,
that is to ensure that certain error conditions are captured in
stress tests(eg: Modem SSR during WLAN PDR will result in download
mode to see if Modem really failed during PDR handling). But this
prevents adversarial testing of recovery use cases, so add knob to
allow recursive recovery.

CRs-Fixed: 2170294
Change-Id: If093f432be3dac48ede2864c3635d3be6b7b7808
Signed-off-by: Sameer Thalappil <sameert@codeaurora.org>