MIPS: OCTEON: cvmx-helper: make __cvmx_helper_errata_fix_ipd_ptr_alignment static

Make __cvmx_helper_errata_fix_ipd_ptr_alignment static, it's not used
outside the file.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Patchwork: https://patchwork.linux-mips.org/patch/21210/
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@linux-mips.org

arch/mips/cavium-octeon/executive/cvmx-helper.c

@@ -818,7 +818,7 @@ static int __cvmx_helper_packet_hardware_enable(int interface)
  * Returns 0 on success
  *	   !0 on failure
  */
-int __cvmx_helper_errata_fix_ipd_ptr_alignment(void)
+static int __cvmx_helper_errata_fix_ipd_ptr_alignment(void)
 {
 #define FIX_IPD_FIRST_BUFF_PAYLOAD_BYTES \
      (CVMX_FPA_PACKET_POOL_SIZE-8-CVMX_HELPER_FIRST_MBUFF_SKIP)