ARM: OMAP2+: Mark omap_hsmmc_init and omap_mux related functions as __init

Now that omap hsmmc init is split into two functions, it's safe
to mark omap_hsmmc_init and omap_mux related functions to __init.

This basically reverts the following fixes for the case where
TWL was compiled as a module:

a98f77b (ARM: omap: fix section mismatch warning for sdp3430_twl_gpio_setup())
8930b4e (ARM: omap: fix section mismatch warnings in mux.c caused by hsmmc.c)

Additionally it fixes up the remaining section warnings for
all callers of omap_mux functions.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/arch/arm/mach-omap2/board-omap3stalker.c b/arch/arm/mach-omap2/board-omap3stalker.c
index 8eee993..6410043 100644
--- a/arch/arm/mach-omap2/board-omap3stalker.c
+++ b/arch/arm/mach-omap2/board-omap3stalker.c
@@ -283,7 +283,6 @@
 			    unsigned gpio, unsigned ngpio)
 {
 	/* gpio + 0 is "mmc0_cd" (input/IRQ) */
-	omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 	mmc[0].gpio_cd = gpio + 0;
 	omap_hsmmc_late_init(mmc);
 
@@ -426,7 +425,9 @@
 	omap_board_config = omap3_stalker_config;
 	omap_board_config_size = ARRAY_SIZE(omap3_stalker_config);
 
+	omap_mux_init_gpio(23, OMAP_PIN_INPUT);
 	omap_hsmmc_init(mmc);
+
 	omap3_stalker_i2c_init();
 
 	platform_add_devices(omap3_stalker_devices,