clk: pxa: keep clocks initialization separated per variant

Have each pxa variant (pxa25x, pxa27x, pxa3xx) have its own device-tree
clock initializing function, to be able to register its own specific
core clocks.

Apply that change specifically to pxa27x.

Signed-off-by: Robert Jarzmik <[email protected]>
Signed-off-by: Michael Turquette <[email protected]>
diff --git a/drivers/clk/pxa/clk-pxa.h b/drivers/clk/pxa/clk-pxa.h
index 7b8d48e..3239654 100644
--- a/drivers/clk/pxa/clk-pxa.h
+++ b/drivers/clk/pxa/clk-pxa.h
@@ -103,5 +103,6 @@
 extern void clkdev_pxa_register(int ckid, const char *con_id,
 				const char *dev_id, struct clk *clk);
 extern int clk_pxa_cken_init(const struct desc_clk_cken *clks, int nb_clks);
+void clk_pxa_dt_common_init(struct device_node *np);
 
 #endif