omap-common: Rename set_muxconf_regs_essential to set_muxconf_regs

There is no distinction between essential and non-essential mux configuration,
so it doesn't make sense to have an "essential" prefix.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
diff --git a/arch/arm/include/asm/arch-omap5/sys_proto.h b/arch/arm/include/asm/arch-omap5/sys_proto.h
index 23a33cb..804266a 100644
--- a/arch/arm/include/asm/arch-omap5/sys_proto.h
+++ b/arch/arm/include/asm/arch-omap5/sys_proto.h
@@ -45,7 +45,7 @@
 u32 get_device_type(void);
 void do_set_mux(u32 base, struct pad_conf_entry const *array, int size);
 void do_set_mux32(u32 base, struct pad_conf_entry const *array, int size);
-void set_muxconf_regs_essential(void);
+void set_muxconf_regs(void);
 u32 wait_on_value(u32, u32, void *, u32);
 void sdelay(unsigned long);
 void setup_early_clocks(void);