* Fix an error when _MM_DENORMALS_ZERO_MASK or _MM_FLUSH_ZERO_MASK is
    not supported.

  * Fix compilation errors with TCC.

With this change, support for preallocation has been added and the
dependency on MA_MAX_CHANNELS has been removed.

This commit makes preallocation mandatory for custom resamplers.

Signed-off-by: Steven Noonan <steven@uplinklabs.net>

Signed-off-by: Steven Noonan <steven@uplinklabs.net>