3rdparty/lib{hwbase,gfxinit}: Update to latest master

Simplifies our C interface function gma_gfxinit(), due to the following
changes:

* *libgfxinit* knows about the underlying PCI device now and can
  probe MMIO addresses by itself.
* The framebuffer mapping is now completely handled inside the
  library where we validate that we neither overflow
  - the stolen memory,
  - the GTT address space, the GTT itself nor
  - the aperture window (i.e. resource2 of the PCI device)
    that we use to access the framebuffer.

Other changes:

* Fixes and a quirk for DP training.
* Fix for DP-VGA adapters that report an analog display in EDID.
* Fixes for Skylake support with coreboot.
* DDI Buffer drive-strength configuration for Haswell, Broadwell and
  Skylake.
* `gfx_test` can now be run from X windows (with glitches).
* Compatibility with GCC 7 and SPARK GPL 2017.

TEST=Booted lenovo/t420 and verified that everything works as usual.

Change-Id: I001ba973d864811503410579fd7ad55ab8612759
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/20606
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>

2 files changed, 0 insertions, 0 deletions

diff --git a/3rdparty/libgfxinit b/3rdparty/libgfxinit
-Subproject fb4f8ce26a05c2304367c066b80651994165837
+Subproject 3a0e2a08f5489f3bb5c6e9f97b903e6e10c31a6
diff --git a/3rdparty/libhwbase b/3rdparty/libhwbase
-Subproject 3bf6759dc09d27c06b3533fd536e667356853d3
+Subproject 66859712e4817288591908d737dbf41ddea31c3