libdwfl: Remove p_align sanity check from elf_from_memory.

libdwfl: Remove p_align sanity check from elf_from_memory.

In commit f15bcd "elf_from_remote_memory should use pagesize, not p_align"
we already relaxed the p_align sanity check to allow alignment of the
segment against the pagesize since that is what the glibc dynamic linker
actually does. But on some architectures the kernel inserts a vdso with
a completely bogus p_align for some PT_LOAD segments. So just drop the
whole sanity check and allow anything since we won't use p_align, but
always already use pagesize anyway.

Signed-off-by: Mark Wielaard <mjw@redhat.com>