build: enable bundled libyaml for all systems.

After we fixed bundled libyaml to correctly print 4-byte Unicode
characters, it is no longer compatible with the upstream version, so
enable building with bundled libyaml for every platform.
This way the tests will pass.

Follow-up #4090

(cherry picked from commit 47b91e9)

After the app/digest.test.lua and app/socket.test.lua where unblocked
by the commit:

  f588066
  commit f588066
  Author: Alexander V. Tikhonov <avtikhon@tarantool.org>
  Date:   Sun May 10 09:28:15 2020 +0300

    test: return tests to packaging testing

    Found that issues #1227 and #1322 were closed, returned
    the tests blocked by it into the testing.

    Part of #4599

THe following issue appeared in the both tests:

 [032] --- app/digest.result  Thu May 21 03:21:02 2020
 [032] +++ app/digest.reject  Thu May 21 03:26:47 2020
 [032] @@ -333,7 +333,7 @@
 [032]
 [032]    YWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFh
 [032]
 [032] -  '
 [032] +'
 [032]  ...
 [032]  digest.base64_decode(b) == s
 [032]  ---
 [032]

Found that the issue was already fixed in the main trunk of Tarantool
2.x version where bundled libyaml was used. To fix the tests in 1.10
version decided to use bundled libyaml too.

apk/APKBUILD

@@ -23,10 +23,8 @@ build() {
     cd "$builddir"
 
     cmake -DCMAKE_BUILD_TYPE=RelWithDebInfo \
-          -DENABLE_BUNDLED_LIBYAML:BOOL=OFF \
           -DENABLE_BACKTRACE:BOOL=ON \
           -DENABLE_DIST:BOOL=ON \
-          -DENABLE_BUNDLED_LIBYAML:BOOL=OFF \
           -DCMAKE_INSTALL_PREFIX=/usr \
           -DCMAKE_INSTALL_SYSCONFDIR=/etc \
           -DCMAKE_INSTALL_LOCALSTATEDIR=/var \

debian/rules

@@ -15,7 +15,6 @@ DEB_CMAKE_EXTRA_FLAGS := \
 	-DCMAKE_INSTALL_LIBDIR=lib/$(DEB_HOST_MULTIARCH) \
 	-DCMAKE_INSTALL_SYSCONFDIR=/etc \
 	-DCMAKE_INSTALL_LOCALSTATEDIR=/var \
-	-DENABLE_BUNDLED_LIBYAML=OFF \
 	-DENABLE_DIST=ON \
 	-DWITH_SYSVINIT=ON \
 	-DWITH_SYSTEMD=$(WITH_SYSTEMD)

rpm/tarantool.spec

@@ -145,7 +145,6 @@ C and Lua/C modules.
 %cmake . -DCMAKE_BUILD_TYPE=RelWithDebInfo \
          -DCMAKE_INSTALL_LOCALSTATEDIR:PATH=%{_localstatedir} \
          -DCMAKE_INSTALL_SYSCONFDIR:PATH=%{_sysconfdir} \
-         -DENABLE_BUNDLED_LIBYAML:BOOL=OFF \
 %if %{with backtrace}
          -DENABLE_BACKTRACE:BOOL=ON \
 %else

snapcraft.yaml

@@ -25,7 +25,6 @@ parts:
         plugin: cmake
         configflags:
           - -DCMAKE_BUILD_TYPE=RelWithDebInfo
-          - -DENABLE_BUNDLED_LIBYAML=OFF
           - -DENABLE_DIST=OFF # Disable tarantoolctl, init scripts, etc.
         build-packages:
           - cmake