ltp: Improve package stripping

Just exclude the specific tests which have an issue with being stripped
rather than the whole package. This reduces the disk footprint by around
400MB.

(From OE-Core rev: 460ccb6e2c5e858614cb61f21923062b55ff325e)

Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-extended/ltp/ltp_20180118.bb

@@ -102,10 +102,8 @@ RDEPENDS_${PN} = "\
 
 FILES_${PN} += "/opt/ltp/* /opt/ltp/runtest/* /opt/ltp/scenario_groups/* /opt/ltp/testcases/bin/* /opt/ltp/testcases/bin/*/bin/* /opt/ltp/testscripts/* /opt/ltp/testcases/open_posix_testsuite/* /opt/ltp/testcases/open_posix_testsuite/conformance/* /opt/ltp/testcases/open_posix_testsuite/Documentation/* /opt/ltp/testcases/open_posix_testsuite/functional/* /opt/ltp/testcases/open_posix_testsuite/include/* /opt/ltp/testcases/open_posix_testsuite/scripts/* /opt/ltp/testcases/open_posix_testsuite/stress/* /opt/ltp/testcases/open_posix_testsuite/tools/* /opt/ltp/testcases/data/nm01/lib.a /opt/ltp/lib/libmem.a"
 
-# Avoid generated binaries stripping. Otherwise some of the ltp tests such as ldd01 & nm01 fails
-INHIBIT_PACKAGE_STRIP = "1"
-INHIBIT_PACKAGE_DEBUG_SPLIT = "1"
-# However, test_arch_stripped is already stripped, so...
+# Avoid stripping some generated binaries otherwise some of the ltp tests such as ldd01 & nm01 fail
+INHIBIT_PACKAGE_STRIP_FILES = "/opt/ltp/testcases/bin/nm01 /opt/ltp/testcases/bin/ldd01"
 INSANE_SKIP_${PN} += "already-stripped staticdev"
 
 # Avoid file dependency scans, as LTP checks for things that may or may not