powerpc/ps3: Fix hcall lv1_read_repository_node
The lv1 hcall #91 should be named lv1_read_repository_node, and
not lv1_get_repository_node_value. Adjust the lv1 hcall table
and all calls.
Signed-off-by: Geoff Levand <geoff@infradead.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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