clk: imx: Fix the build break when clk-imx8ulp build as module

JIRA: https://issues.redhat.com/browse/RHEL-5705

commit d4e6c054fa953d06025b606b26939468df477fbf
Author: Jacky Bai <ping.bai@nxp.com>
Date:   Fri Sep 17 14:16:29 2021 +0800

    clk: imx: Fix the build break when clk-imx8ulp build as module

    Export the necessary symbols to fix the build break when clk-imx8ulp
    build as module

    Fixes: c43a801a5789 ("clk: imx: Add clock driver for imx8ulp")
    Signed-off-by: Jacky Bai <ping.bai@nxp.com>
    Reviewed-by: Abel Vesa <abel.vesa@nxp.com>
    Link: https://lore.kernel.org/r/20210917061629.3798360-1-ping.bai@nxp.com
    Signed-off-by: Abel Vesa <abel.vesa@nxp.com>

Signed-off-by: Joel Slebodnick <jslebodn@redhat.com>

drivers/clk/imx/clk-composite-7ulp.c

@@ -166,3 +166,4 @@ struct clk_hw *imx8ulp_clk_hw_composite(const char *name, const char * const *pa
 	return imx_ulp_clk_hw_composite(name, parent_names, num_parents, mux_present, rate_present,
 					gate_present, reg, has_swrst);
 }
+EXPORT_SYMBOL_GPL(imx8ulp_clk_hw_composite);

drivers/clk/imx/clk-pfdv2.c

@@ -239,3 +239,4 @@ struct clk_hw *imx_clk_hw_pfdv2(enum imx_pfdv2_type type, const char *name,
 
 	return hw;
 }
+EXPORT_SYMBOL_GPL(imx_clk_hw_pfdv2);

drivers/clk/imx/clk-pllv4.c

@@ -254,3 +254,4 @@ struct clk_hw *imx_clk_hw_pllv4(enum imx_pllv4_type type, const char *name,
 
 	return hw;
 }
+EXPORT_SYMBOL_GPL(imx_clk_hw_pllv4);