xfail fp-uint64-convert-double-* on all arm targets

xfail fp-uint64-convert-double-* on all arm targets

It wasn't long ago that I xfailed these tests on arm-*-eabi, but the
fail is expected on all other arm targets: even when hard float is
available, conversions between 64-bit integers and double are always
emulated on ARM, and the emulation disregards rounding modes.  So,
bump the xfail to all of arm-*-*.

for  gcc/testsuite/ChangeLog

	* gcc.dg/torture/fp-uint64-convert-double-1.c: XFAIL on all of
	arm-*-*.
	* gcc.dg/torture/fp-uint64-convert-double-2.c: Likewise.