Change in coreboot[master]: haswell/broadwell: Merge `minihd.c` files

[Angel Pons (Code Review)]

Attention is currently required from: Martin Roth, Patrick Rudolph.
Hello build bot (Jenkins), Patrick Georgi, Martin Roth, Patrick Rudolph,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/50144

to look at the new patch set (#2).

Change subject: haswell/broadwell: Merge `minihd.c` files
......................................................................

haswell/broadwell: Merge `minihd.c` files

The only differences between both files are device IDs. In addition,
remove the `gma.h` header from Broadwell, and use Haswell's instead.

Change-Id: I6cce4f25fc092fe7493f6431a40aa54883eba197
Signed-off-by: Angel Pons 
---
M src/northbridge/intel/haswell/minihd.c
M src/soc/intel/broadwell/Kconfig
M src/soc/intel/broadwell/Makefile.inc
M src/soc/intel/broadwell/gma.c
D src/soc/intel/broadwell/include/soc/gma.h
D src/soc/intel/broadwell/minihd.c
6 files changed, 17 insertions(+), 157 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/44/50144/2