Fix product model in init.espresso.rc

I don't know if this needs to just be GT-P3100
for both the 3100 and 3110 or if we can use a variable
like I have it now, also if someone can tell me if the
variable is correct or the $ needs to go inside the brackets
if we need to differentiate.

Change-Id: I7f9a8c973e4cace45aa470701354afdd1cef6279
P3100: Don't reset inherited system-wide SELinux configs

Change-Id: I5fb17ec41d05c1c070eb62b1100ed05427ea7ee9
Merge commit 'ace0971e2d37d083808a994f2b0a04f6abd60011' of https://github.com/CyanogenMod/android_device_samsung_p3100 into cm-10.2