init: Increase the buffer for /proc/cpuinfo for ocata cores.

The data buffer is too small to parse the hardware name of octa cores.
This results in an empty property for ro.hardware.

Change-Id: I4dab37bccfba4d74cc3f041ffcd38c887488a39d
Signed-off-by: Andreas Schneider <asn@cryptomilk.org>