[RFC] flashchips: Begin splitting flashchips by vendor

To make the flashchips "database" easier to manage, split it by vendor
into several smaller files. This commit transfers the bulk of the data
to separate files and includes them from `flashchips.c`. Although this
is ugly (.c includes are usually frowned upon), it is a necessary evil
to make this commit reproducible.

TODO: Test reproducibility.

Change-Id: I3a9ebb0575e2700c5871d16875495d9c8943b30b
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
---
M flashchips.c
A flashchips/amd.c
A flashchips/amic.c
A flashchips/atmel.c
A flashchips/boya_bohong.c
A flashchips/bright.c
A flashchips/catalyst.c
A flashchips/ene.c
A flashchips/eon.c
A flashchips/esi.c
A flashchips/esmt.c
A flashchips/fudan.c
A flashchips/fujitsu.c
A flashchips/gigadevice.c
A flashchips/hyundai.c
A flashchips/intel.c
A flashchips/issi.c
A flashchips/macronix.c
A flashchips/micron.c
A flashchips/micron_numonyx_st.c
A flashchips/mosel_vitelic.c
A flashchips/nantronics.c
A flashchips/pmc.c
A flashchips/puya.c
A flashchips/sanyo.c
A flashchips/sharp.c
A flashchips/spansion.c
A flashchips/sst.c
A flashchips/st.c
A flashchips/syncmos_mosel_vitelic.c
A flashchips/ti.c
A flashchips/winbond.c
A flashchips/xmc.c
A flashchips/xtx.c
A flashchips/zetta.c
35 files changed, 23,174 insertions(+), 22,490 deletions(-)