valgrind: update to 3.11.0

valgrind: update to 3.11.0

LICENSE checksums are changed due to a change in FSF address, or copyright
years update.

Added patches:
0001-Remove-tests-that-fail-to-build-on-some-PPC32-config.patch replaces remove-ppc-tests-failing-build.patch
and removes only those tests that are known to break the build on ppc32 configurations tested by
poky autobuilders

Rebased patches:
sepbuildfix.patch rebased to 0004-Fix-out-of-tree-builds.patch
add-ptest.patch rebased to 0005-Modify-vg_test-wrapper-to-support-PTEST-formats.patch

Removed patches:
force-nostabs.patch removed because it's patching lines that have been removed upstream
remove-ppc-tests-failing-build.patch replaced with 0001-Remove-tests-that-fail-to-build-on-some-PPC32-config.patch
enable.building.on.4.x.kernel.patch removed because the problem is fixed upstream
glibc.patch removed for the same reason

Removed backports:
pass-maltivec-only-if-it-supported.patch
0001-valgrind-Enable-rt_sigpending-syscall-on-ppc64-linux.patch

Signed-off-by: Alexander Kanavin <alexander.kanavin@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>