ANDROID: GKI: x86: Add utf8_data_table for case-folding support

The upstream commit 2b3d0478 ("unicode: Add utf8-data module") moved
the unicode nomalization functions into a module so that it could be
selectively included in the kernel based of support for case-folding.
In doing so, utf8-core.c uses symbol_request() to reference the
utf8_data_table symbol. Since GKI trims unused symbols, include
this symbol to our symbol list so that it doesn't get trimmed.

Link: https://lore.kernel.org/all/ZDnbW1qYmBLycefL@google.com/



Copy&paste from aosp/2540711 by Will McVicker <willmcvicker@google.com>
but for x86_64 arch.

Bug: 278561372
Bug: 378939267
Change-Id: Ifbec496f5eb5daa830173ca1c233eead9b63f1c1
Signed-off-by: Tomasz Nowicki <tnowicki@google.com>