fboot: Acquire sudo rights at the beginning
fboot: Acquire sudo rights at the beginning

Change-Id: I79316d2dfae1a61f24717c1461a93b3bbd02c176
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools