meta-ohos: replace meta-ohos-foundation with meta-ohos-acts

meta-ohos-foundation is currently unused, therefore it should not
be included in the bblayers.conf.sample file.

meta-ohos-acts layer contains recipes for building OHOS tests.

Signed-off-by: Robert Drab <robert.drab@huawei.com>

flavours/linux/bblayers.conf.sample

@@ -10,7 +10,7 @@ BBLAYERS ?= " \
   ##OEROOT##/meta-poky \
   ##OEROOT##/meta-yocto-bsp \
   ##OEROOT##/../meta-ohos/meta-ohos-core \
-  ##OEROOT##/../meta-ohos/meta-ohos-foundation \
+  ##OEROOT##/../meta-ohos/meta-ohos-acts \
   ##OEROOT##/../meta-intel \
   ##OEROOT##/../meta-seco-intel \
   ##OEROOT##/../meta-openembedded/meta-oe \