buildroot

linux/perf: forcefully disable the features with missing dependencies

Forcefully disable the features that have optional dependencies that are
not enabled in Buildroot.

Disable support for bionic since, well, we're not Android.

Slightly re-order the variables to have semantically-related variables
together, with features last.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>