x11/cde*: Fix build under LLVM15
Fix many -Wint-conversion error such as the example below, including
an aso atomics.
connect.c:87:12: error: incompatible pointer to integer conversion initializing 'LONG' (aka 'int') with an expression of type 'void *' [-Wint-conversion]
DB_ADDR mdba = NULL; /* db address of current member record */ ^ ~~~~