mfd: Copy the device pointer to the twl4030-madc structure
mfd: Copy the device pointer to the twl4030-madc structure

Worst case this fixes the following error:
[   72.086212] (NULL device *): conversion timeout!

Best case it prevents a crash

Signed-off-by: Kyle Manna <3c25b01657254677d3e1a8fd1f0742c5d489bd39@kylemanna.com>
Signed-off-by: Samuel Ortiz <0ba86cb3f08bbb861958e54bd3438887adb4263c@linux.intel.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs