clk: at91: pmc: move pmc structures to C file

pmc.c is now the only user of struct at91_pmc*, move their definition in
the C file.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>

drivers/clk/at91/pmc.c

@@ -20,6 +20,15 @@
 
 #include "pmc.h"
 
+struct at91_pmc_caps {
+	u32 available_irqs;
+};
+
+struct at91_pmc {
+	struct regmap *regmap;
+	const struct at91_pmc_caps *caps;
+};
+
 void __iomem *at91_pmc_base;
 EXPORT_SYMBOL_GPL(at91_pmc_base);