ARM: imx6q: use common soc revision helpers

It calls imx_set_soc_revision() to set up soc revision in
imx6q_init_revision(), and replaces all the occurrences of
imx6q_revision() with common helper imx_get_soc_revision().

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c
index 913ad85..c681566 100644
--- a/arch/arm/mach-imx/clk-imx6q.c
+++ b/arch/arm/mach-imx/clk-imx6q.c
@@ -300,7 +300,7 @@
 	WARN_ON(!base);
 
 	/* Audio/video PLL post dividers do not work on i.MX6q revision 1.0 */
-	if (cpu_is_imx6q() && imx6q_revision() == IMX_CHIP_REVISION_1_0) {
+	if (cpu_is_imx6q() && imx_get_soc_revision() == IMX_CHIP_REVISION_1_0) {
 		post_div_table[1].div = 1;
 		post_div_table[2].div = 1;
 		video_div_table[1].div = 1;
@@ -574,7 +574,8 @@
 	clk_register_clkdev(clk[pll4_post_div], "pll4_post_div", NULL);
 	clk_register_clkdev(clk[pll4_audio], "pll4_audio", NULL);
 
-	if ((imx6q_revision() != IMX_CHIP_REVISION_1_0) || cpu_is_imx6dl()) {
+	if ((imx_get_soc_revision() != IMX_CHIP_REVISION_1_0) ||
+	    cpu_is_imx6dl()) {
 		clk_set_parent(clk[ldb_di0_sel], clk[pll5_video_div]);
 		clk_set_parent(clk[ldb_di1_sel], clk[pll5_video_div]);
 	}