[cef] Use bundled libwayland instead of the system lib

[cef] Use bundled libwayland instead of the system lib

For the M108 chromium milestone it would be possible to use the
use_system_libwayland and system_wayland_scanner_path gn args to make
the cef recipe use system wayland and wayland-native dependencies, but
those option got deprecated[1] in newer milestones and chormium defaults
to use the bundled wayland. The more maintainable approach is to use the
third party dependency instead of patching chromium build system.

[1]: https://chromium-review.googlesource.com/c/chromium/src/+/4030440

Bug-AGL: SPEC-4871

Signed-off-by: Roger Zanoni <rzanoni@igalia.com>
Change-Id: I7cb22fcfb1943d6765599544069a379088053a2c