oneplusone: kexec-hardboot: fix secondary rom boot - now is fast

Thanks a lot
@tiny4579
@KINGbabasula
ak_bacon_defconfig: compile with CC_OPTIMIZE_FOR_SIZE
ak-bacon-build: compile with 4.9.1-2014.07.20140718.CR83

Thanks a lot
@savoca
@kecinzer
@DerRomtester
vfp: makefile: hard float is used so change flag accordingly
transport.c: Fix warning: 'midQ' may be used uninitialized in this function
epm_adc.c: Fix warning ‘*((void *)&adc_data+2)’ may be used uninitialized in this function
keystore.c: Fix warning ‘payload_len’ may be used uninitialized in this function
Kernel Version: ak.032_b11.opo.cm11s