ble: ap807: Switch to PLL mode and update CPU frequency

- Update CPU frequency on AP807 to 2GHz for SAR 0x0.
- Increase AVS to 0.88V for 2GHz clock

Change-Id: Ic945b682ab2f8543e34294bfc56c3eae2c5e0c8e
Signed-off-by: Christine Gharzuzi <chrisg@marvell.com>
Signed-off-by: Konstantin Porotchkin <kostap@marvell.com>
diff --git a/include/drivers/marvell/ap807_clocks_init.h b/include/drivers/marvell/ap807_clocks_init.h
new file mode 100644
index 0000000..4353b83
--- /dev/null
+++ b/include/drivers/marvell/ap807_clocks_init.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:     BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+#ifndef AP807_INIT_CLOCKS_H
+#define AP807_INIT_CLOCKS_H
+
+void ap807_clocks_init(unsigned int freq_option);
+
+#endif /* AP807_INIT_CLOCKS_H */
+