APX: Don't use red-zone with 32 GPRs and no caller-saved registers

APX: Don't use red-zone with 32 GPRs and no caller-saved registers

Don't use red-zone when there are no caller-saved registers with 32 GPRs
since 128-byte red-zone is too small for 31 GPRs.

gcc/

	PR target/119784
	* config/i386/i386.cc (ix86_using_red_zone): Don't use red-zone
	with 32 GPRs and no caller-saved registers.

gcc/testsuite/

	PR target/119784
	* gcc.target/i386/pr119784a.c: New test.
	* gcc.target/i386/pr119784b.c: Likewise.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>