Add vladisslav2011's EC hotpatch and battery fix deltas.

[jwise]

I did an r2 bindiff on vladisslav2001's EC to port some of his fixes over to x2100. Here's the EC hotpatch delta, for use with his ec_sys.ko changes. Also enclosed is his battery bugfixes.

Note that I have NOT tested these changes, since I don't have an x210 board! So until someone tests this, use at your own risk. I've only tested my ported version on x2100.

[l29ah]

Are those changes just parts of his patchset or they are substantially different to accommodate for the X2100? If it's the latter, having a distinct option for X2100 mode or forking the project altogether may make more sense to avoid confused users bricking their laptops.

Anyway, i don't have a setup to unbrick my X210 in case of problems these days, so i'll wait until someone chimes in and tests it before merging.

[jwise]

These changes are parts of his patchset, and are for X210. The master branch of my fork, jwise/x2100-ec, has X2100 ports, but the x210 port just has Vladisslav2001's changes directly.