ueventd: add ION permissions
add WITH_SPADE_DSP_PROFILE to cflags

Change-Id: I65a07e9eb40aad3fbe0843767ebdfa28405b365f
init: add read_ahead_kb for internal memory and disable entropy on sdcard

Change-Id: Ice8f5d0640e7e9d2040b3cef51de1081bc4d5cf7