nptl: Do not use madvise
nptl: Do not use madvise

start_thread() uses it, but it is not supported on MMU-less systems.

	* libpthread/nptl/pthread_create.c (start_thread): Call madvise
	only if __ARCH_USE_MMU__ is defined.

Signed-off-by: Mickaël Guêné <fd4c850767532186e170673aca49b5c51d48c53c@st.com>
Signed-off-by: Christophe Lyon <0ec1b8ee85d9250d253c392c5d5101068ac5d5d3@st.com>

wbx-github/uclibc-ng,wbx-github/uclibc-ng,wbx-github/uclibc-ng,kraj/uclibc-ng,kraj/uclibc-ng,kraj/uclibc-ng,kraj/uclibc-ng,wbx-github/uclibc-ng