OvmfPkg: PciHostBridgeDxe: eliminate nominal support for multiple host bridges

The entry point function of this driver, InitializePciHostBridge(), and
the static storage duration objects it relies on, are speculatively
generic -- they nominally support more than one host bridges, but (a) the
code hardwires the number of host bridges as 1, (b) it's very unlikely
that we'd ever like to raise that number (especially by open-coding it).

So let's just remove the the nominal support, and simplify the code.

This patch is best viewed with "git show -b".

Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Regression-tested-by: Gabriel Somlo <somlo@cmu.edu>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17955 6f19259b-4bc3-4df7-8a09-765794883524
2 files changed