RT: fixes for kernel build errors on MIPS RBTX4927, 2.6.24-rc7

From: Frank Rowand <[email protected]>

This patch series is a few small fixes to kernel build errors for the Toshiba RBTX4927 MIPS board in the 2.6.24-rc7 kernel, with the 2.6.24-rc7-rt2 patch previously applied. These patches are directly related to the -rt2 patch, not to the vanilla MIPS tree. A related set of patches will be submitted to linux-mips.org.

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