We need this fix to enable h264 decoding on g4x platform.

There are two patches to fix the problem.

1.       merge ring irq put-get pair into bsd_ring irq put-get pair

2.       add conditional judgment about dev version to use different interrupt 
control interfaces.

As the patches show, g4x has a different interrupt control interface. So an 
if-else statement
is needed. And make all differences in a put-get pair is reasonable, since the 
differences are neither
so many to use another date structure nor so few to present by an argument.

Thanks,
Feng, Boqun

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