valgrind: re-enable ARM intdiv and vcvt_fixed_float_VFP tests
The intdiv test has been partially fixed upstream and the
vcvt_fixed_float_VFP test can be fixed with a similar approach, ie
ensuring that it is always compiled with appropriate
-march/-mcpu/-mfpu flags to support the instructions being tested.
For tests requiring armv7ve instructions, ensure that we set both
-march=armv7ve and -mcpu=cortex-a15 (since some TUNE_CCARGS may set
-march=armv7-a and adding -mcpu=cortex-a15 alone is not enough to
over-ride that).
See similar cases in none/tests/arm/Makefile.am
Signed-off-by: Andre McCurdy <armccurdy@gmail.com> Signed-off-by: Ross Burton <ross.burton@intel.com>
