Fix benign unsigned integer overflow

Fixes a benign overflow error in ANetworkSession.cpp

Bug: 23110888
Change-Id: Ic64f5100ab1e3f2ffe247ca4f7b40d38c1ff0c2a
(cherry picked from cfe302317c873001b0b35352d9f4f52c39f6f4b7)
1 file changed