gitmodules: add berkeley's softfloat + testfloat version 3

These are BSD-licensed so we can add them as submodules.

Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

.gitmodules

@@ -43,3 +43,9 @@
 [submodule "roms/u-boot-sam460ex"]
 	path = roms/u-boot-sam460ex
 	url = git://git.qemu.org/u-boot-sam460ex.git
+[submodule "tests/fp/berkeley-testfloat-3"]
+	path = tests/fp/berkeley-testfloat-3
+	url = git://github.com/cota/berkeley-testfloat-3
+[submodule "tests/fp/berkeley-softfloat-3"]
+	path = tests/fp/berkeley-softfloat-3
+	url = git://github.com/cota/berkeley-softfloat-3

berkeley-softfloat-3 @ b64af41c

+Subproject commit b64af41c3276f97f0e181920400ee056b9c88037

berkeley-testfloat-3 @ ca9fa2ba

+Subproject commit ca9fa2ba05625ba929958f163b01747e07dd39cc