use static storage class instead of extern for inline functions
and remove duplicate definitions as a result
Change-Id: I72e8c5f19dff656c18f719d1e9e2ca697c9a856f
(From OE-Core rev: 1a9d92b9891c06ede91af05d516a429e1f81777d)
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
