ARM: OMAP2+: Fix typo in omap4-common.c

Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/omap4-common.c

@@ -61,7 +61,7 @@ static phys_addr_t dram_sync_paddr;
 static u32 dram_sync_size;
 
 /*
- * The OMAP4 bus structure contains asynchrnous bridges which can buffer
+ * The OMAP4 bus structure contains asynchronous bridges which can buffer
  * data writes from the MPU. These asynchronous bridges can be found on
  * paths between the MPU to EMIF, and the MPU to L3 interconnects.
  *