LOCAL / PCI: exynos: remove __init macro from exynos_pcie_probe()

LOCAL / PCI: exynos: remove __init macro from exynos_pcie_probe()

After the commit 7051bc3056ba ("LOCAL / pci: dwc: pci-exynos:
support the pci of exynos5433"), exynos_pcie_probe() is no more
called from context started from subsys_initcall() and it makes
section mismatch in reference to .init.text:exynos_pcie_probe().
Remove __init macro from exynos_pcie_probe() to remove the
section mismatch.

Change-Id: Ic2c4eceb3ae33a78482f5beb02bf1ec42d01aa78
Signed-off-by: Seung-Woo Kim <sw0312.kim@samsung.com>