adbst: Improve the process pid detection in recoveries
adbst: Improve the process pid detection in recoveries

Change-Id: Ib974bddfe0f98e58491839439fcf874890e4e943
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools