ANDROID: GKI: drivers: base: soc: export symbols for socinfo

drivers/base/soc.c uses symbols defined in the base/soc driver, export
them to enable the socinfo modularization.

Bug: 144523239
Test: modules load, same devices probe on kona
Change-Id: Ie620bf6a8aa1b09faaf67a936c8bb0eba21f05fc
Signed-off-by: Quentin Perret <qperret@google.com>
Tested-by: Connor O'Brien <connoro@google.com>
(cherry picked from commit f21560c0cc37c80de35d20c1eba27eb044b16186)
Signed-off-by: Mark Salyzyn <salyzyn@google.com>
Bug: 153738240