ARM: dts: msm: Update rf clock node in wcnss for MSM8909

As per the schematic layout RFCLK1 is connect with pm660.
update the rf clock node with RFCLK1 in wcnss.

CRs-fixed: 2239741
Change-Id: I0861f2cea7eed978c7ec71393ec4785a46af8de0
Signed-off-by: Hardik Kantilal Patel <hkpatel@codeaurora.org>