msm: 8084: Enable PCIe RCs with clock and board support

Update PCIe clock mapping and auxdata lookup entries when two PCIe
Root Complexes (RCs) on APQ8084 are both used.

Change-Id: I6b8a2314c7cf8a3f6473850b23fd092f7596863e
Signed-off-by: Yan He <yanhe@codeaurora.org>