lib: cpus: denver: mark exception vectors as private

This patch removes the 'workaround_bpflush_runtime_exceptions' exception
vector table base address from the globals list as it gets used only by
the Denver CPU implementation.

Change-Id: I6ef94989f6dc4535d464493cc8621d32795ee1f6
Signed-off-by: Varun Wadekar <vwadekar@nvidia.com>

lib/cpus/aarch64/denver.S

@@ -27,8 +27,6 @@
 	 * table.
 	 * -------------------------------------------------
 	 */
-	.globl	workaround_bpflush_runtime_exceptions
-
 vector_base workaround_bpflush_runtime_exceptions
 
 	.macro	apply_workaround