st/omx: don't return early in vid_enc_EncodeFrame()

st/omx: don't return early in vid_enc_EncodeFrame()

Earlier commit plugged a memory leak, although it missed a pair of
brackets. Thus we unconditionally returned even in the case of no error.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=95203
Fixes: b87856d25d1 ("st/omx: Fix resource leak on OMX_ErrorNone")
Tested-by: Andy Furniss <adf.lists@gmail.com>
Acked-by: Robert Foss <robert.foss@collabora.com>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
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What an embarassing bug - missing brackets. Andy can you confirm that it
resolves the issue ?