common: build su,not SuperUser
Signed-off-by: Domenico Marino <johnlemon.lol@gmail.com>

Change-Id: I17fd49136c3d9acee51e24d1a19b7d0e84b6b159
kernel.mk: import from CM

Change-Id: I08f110eac280695b6edea77baf4dfefaacb38e53
Signed-off-by: Domenico Marino <johnlemon.lol@gmail.com>