perf: get rid of the <asm/bitsperlong.h> include

The <asm/bitsperlong.h> include seems to cause trouble in some arm64 configs.
Also make libtraceevent to see Bionic -isystem flags passed to us.

Signed-off-by: Bernhard Rosenkraenzer <Bernhard.Rosenkranzer@linaro.org>
2 files changed