Allow telephony access to proc/cmdline

Otherwise on toro you get:
D/TelephonyManager(  131): No /proc/cmdline exception=java.io.FileNotFoundException:
/proc/cmdline: open failed: EACCES (Permission denied)

Change-Id: I2685959d485be3e29a738bc6287fdd99dc52b771
tuna: set minimum brightness to 1 instead of 10

Minimum brightness for toroplus (and other tuna-based devices) was
reported as being too bright for night-time usage. It makes sense
logically that the minimum brightness that can be set should be 1
instead of 10, this change is also present in mako.

Change-Id: Id818cdb3a4151e647409f31a3529bf5dbadbed02
JIRA: CYAN-2319
Merge "tuna: set minimum brightness to 1 instead of 10" into jb-mr2
Merge remote-tracking branch 'upstream/jb-mr2' into jb-mr2