i9300: Add RIL subclass for GSM

Fixes sim unlock with PIN code. Clean up BoardConfig.mk

Change-Id: Idd6c0930743a3ba7e6834ea0b0e7d1175223c901

Conflicts:
	BoardConfig.mk
Revert "use fakeiccid to fix outgoing calls"

This reverts commit 394e6b416a61d99be91cdec582a084739e5dc2b1.
Revert "ril.h: add ifdef for legacy_ril"

This reverts commit d9915ae023c8271e50f7d8349e2b679ae06b6a22.
Revert "Apply patch for i9300"

This reverts commit c653f6acc5fa5aebfe23dbf6858f121647319a2d.
Revert "Rebase everything on top of cm-12.0 ril.h"

This reverts commit 524f8acad3021b6db3ec8b7d877909bd34f69af6.
Merge branch 'cm-12.0' of https://github.com/ArchiDroid/android_device_samsung_i9300 into test