board_f: powerpc: Rename get_clocks_866() to get_clocks()

We really don't need to have a name like this in the generic init
sequence. Use the generic get_clocks() name so that we can merge these
two at some point.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: York Sun <york.sun@nxp.com>
Reviewed-by: Stefan Roese <sr@denx.de>

arch/powerpc/cpu/mpc8xx/speed.c

@@ -243,7 +243,7 @@ static long init_pll_866 (long clk);
  * contains invalid value).
  * This functions requires an MPC866 or newer series CPU.
  */
-int get_clocks_866 (void)
+int get_clocks(void)
 {
 	volatile immap_t *immr = (immap_t *) CONFIG_SYS_IMMR;
 	char		  tmp[64];