ANDROID: vendor_hooks: FPSIMD save/restore by using vendor_hooks

 - To use fpsimd in kernel task, vendor_hook call is needed to
   save/restore fpsimd at scheduling time.
 - ANDROID_VENDOR_DATA added to thread_struct.
 - Vendor_hooks is called when thread is switching for save/restore
   fpsimd states.
  (trace_android_vh_is_fpsimd_save(prev, next))

Bug: 149632552

Signed-off-by: Wooyeon Kim <wooy88.kim@samsung.com>
Change-Id: I853e1b6a9a51e24f770423bbc39fdd84265d78fc
(cherry picked from commit 74555f39)
[Removed VENDOR_DATA bits]
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>