For PCIe 2 PHY setting of QSERDES_COM_SYSCLK_EN to 0x4 which is
internal diff cml clock, PHY is not coming up and hence changed the
PCIe 2 PHY setting of QSERDES_COM_SYSCLK_EN to 0x8 which is SE cmos clock.
Corrected SLV_Q2A_AXI_CLK clock for PCIe2.
Updated reset names of core and phy of PCIe0.
Change-Id: Ib227f03e2ddc4c581d538152e54fe036aef29895