[smd_tty]-fix mobile data for cLK
Instead of switching htc_ril_wrapper from smd1 to smd7 lets switch the channel in kernel so that it is compatible with older wrapper.
Credits: walter79 see here https://github.com/walter79/android_kernel_htc_leo/commit/f9502f4bf549fece17f1ec5224fd6c16b482c068