msm: ep_pcie: Vote for pipe clk for early init case

Few usecases will have early init feature enabled where
PCIe link is established in PBL. In such cases EP PCIe
driver is not voting for pipe clk but unvoting it as part of
PCIe link suspend, causing unbalanced voting for that clk.

Update logic to vote for PCIe pipe clk for early init case.

Change-Id: Ibb26e88b1b3fb4426a2c03bf3031633e3fb4639f
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>