configure: add missing cross compiler fallbacks

The arm compiler can be used for armeb, and the sparc64 compiler
can be used for sparc.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220517092616.1272238-9-pbonzini@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220527153603.887929-20-alex.bennee@linaro.org>
1 file changed