Add device id for QCA6290 emulation platform.
Add target def support for QCA6290
Needs HIF_TYPE_QCA6290 defined
Change-Id: I4edd5a5b600007ebe7416195648815d80025e768
CRs-Fixed: 1089874
X86 uses PCI to connect to qca8074. ATH_AHB is not enabled on x86
but regdef is required to set correct offset for registers. Move the
initialization code out of ATH_AHB compiler flag.
Change-Id: I369f9c87e006fa3ae929e18a6922332d84f01382
CRs-Fixed: 1079647