mflinger: Use explicit socklen_t type for portability
mflinger: Use explicit socklen_t type for portability

arm64 toolchain complains about the cast from int* to socklen_t*.

Signed-off-by: Preetam D'Souza <217a41a8be005ac7f6a1c1c5a42b81b8928ed037@gmail.com>

maruos/mflinger,maruos/mflinger,maruos/mflinger