tests/tcg/arm: Use -march and -mfpu for fcvt

Clang requires the architecture to be set properly
in order to assemble the half-precision instructions.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-Id: <20240630190050.160642-13-richard.henderson@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20240705084047.857176-18-alex.bennee@linaro.org>
1 file changed