Change in flashrom[master]: Makefile: Make pkg-config mandatory to find libjaylink

[Thomas Heijligen (Code Review)]

Attention is currently required from: Nico Huber.
Hello build bot (Jenkins), Nico Huber, Angel Pons,

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

https://review.coreboot.org/c/flashrom/+/59048

to look at the new patch set (#11).

Change subject: Makefile: Make pkg-config mandatory to find libjaylink
......................................................................

Makefile: Make pkg-config mandatory to find libjaylink

Use `make HAS_LIBJAYLINK=yes/no` to override the pkg-config detection
and `CONFIG_LIBJAYLINK_CFLAGS` and `CONFIG_LIBJAYLINK_LDFLAGS` to set
cflags and ldflags manually.

Change-Id: I99df547046bb9820ab502f89f6d4452c1bc0cfd4
Signed-off-by: Thomas Heijligen 
---
M Makefile
M Makefile.include
2 files changed, 20 insertions(+), 48 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/48/59048/11