toplev: Ask for 128MB stack when compiled with ASAN [PR124206]

64MB stack is not enough for running
gcc/testsuite/gcc.c-torture/compile/limits-exprparen.c with an
ASAN-instrumented GCC.  Ask for more stack if GCC was compiled with ASAN
instrumentation.

	PR sanitizer/124206

gcc/ChangeLog:

	* gcc.cc (driver::global_initializations): Ask for 128MB stack
	instead of just 64MB when __SANITIZE_ADDRESS__ is defined.
	* toplev.cc (toplev::main): Ditto.

Signed-off-by: Filip Kastl <fkastl@suse.cz>