romkernelmrproper: Helper to run mrproper inside the kernel path
romkernelmrproper: Helper to run mrproper inside the kernel path

Change-Id: I9ba7790c61896b1131b55cc8af251eae0131e900
Signed-off-by: Adrian DC <01fb3892f39957945220431e7409156544d2f041@gmail.com>

AdrianDC/android_development_shell_tools,AdrianDC/android_development_shell_tools