omap4+: Avoid using __attribute__ ((__packed__))

Avoid using __attribute__ ((__packed__)) unless it's
absolutely necessary. "packed" will remove alignment
requirements for the respective objects and may cause
alignment issues unless alignment is also enforced
using a pragma.

Here, these packed attributes were causing alignment
faults in Thumb build.

Signed-off-by: Aneesh V <aneesh@ti.com>
diff --git a/arch/arm/include/asm/arch-omap4/mux_omap4.h b/arch/arm/include/asm/arch-omap4/mux_omap4.h
index 30bfad7..4de7c70 100644
--- a/arch/arm/include/asm/arch-omap4/mux_omap4.h
+++ b/arch/arm/include/asm/arch-omap4/mux_omap4.h
@@ -34,7 +34,7 @@
 
 	u16 val;
 
-} __attribute__ ((packed));
+};
 
 #ifdef CONFIG_OFF_PADCONF
 #define OFF_PD          (1 << 12)