[patch] use __attribute__ in asm-powerpc

[Andreas Schwab]

Geert Uytterhoeven <Geert.Uytterhoeven at sonycom.com> writes:

> If the code is not exported to userspace (and thus not subject to different
> compilers), I think the preferred form is plain `attribute'.

That does not exist without underscores.

Andreas.

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Andreas Schwab, SuSE Labs, schwab at suse.de
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