build: Use compiler.find_library for libhugetlbfs

build: Use compiler.find_library for libhugetlbfs

libhugetlbfs is not detected via dependency() because the library
neither provides a pkg-config() nor a cmake helper. Use
compiler.find_library to figure out if the library is available.

We do not use the has_header feature of compiler.find_library()
function as this would update our minimum version for meson to
0.50.0. Instead open code it by using compiler.has_header().

Signed-off-by: Daniel Wagner <dwagner@suse.de>