USB: Fix OHCI warning
This patch fixes a warning introduces by the split endian OHCI support patch on platforms that don't have readl_be/writel_be variants (though mostly harmless as those are called in an if (0) statement, but gcc still warns). Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>
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