ANDROID: Disable CFI on restricted vendor hooks in TRACE_HEADER_MULTI_READ

commit 5e767aa0 ("ANDROID: use static_call() for restricted hooks")
introduced an implementation of __iteriter_##_name when
TRACE_HEADER_MULTI_READ is defined. __nocfi that function as well in
order to keep the performance optimizations from commit 384becf1
("ANDROID: Disable CFI on restricted vendor hooks").

Fixes: 384becf1 ("ANDROID: Disable CFI on restricted vendor hooks")
Change-Id: I6ea1cd767bad95c324c06398475174b710ae4dbe
Signed-off-by: Elliot Berman <quic_eberman@quicinc.com>