msm: ais: lrme: Fix Stack Overflow condition in lrme hw manager

Add error check for condition where array index is equal to the max
permissible io buffers for lrme which causes stack overflow.

Change-Id: I5d05faae8350f4f35e55c50b1195123cac126e37
Signed-off-by: E V Ravi <evenka@codeaurora.org>