package/patchelf: pull in upstream bugfixes

package/patchelf: pull in upstream bugfixes

When building iputils for powerpc with BR2_PIC_PIE enabled, the
arping/rdisc/tftpd binaries will segfault at runtime. This can be
traced back to a few bugs in patchelf corrupting the ELFs when
resizing the RPATH to replace "$ORIGIN/" with "/usr/sbin".

This patch pulls in upstream fixes to prevent the binaries from being
needlessly inflated, prevent the startPage from always being adjusted,
fix a few minor bugs, and fix incorrect endianness handling.

Signed-off-by: Conrad Ratschan <conrad.ratschan@rockwellcollins.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>