x86/platform/intel-mid: Rename mrfl.c to mrfld.c

Use mrfld as an abbreviation of Merrifield to be consistent with the rest of
the code.

In the future we are going to add more files here prefixed with 'mrfld'.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1466265094-146113-1-git-send-email-andriy.shevchenko@linux.intel.comSigned-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/platform/intel-mid/Makefile

-obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o intel_mid_vrtc.o mfld.o mrfl.o pwr.o
+obj-$(CONFIG_X86_INTEL_MID) += intel-mid.o intel_mid_vrtc.o mfld.o mrfld.o pwr.o
 
 # SFI specific code
 ifdef CONFIG_X86_INTEL_MID

arch/x86/platform/intel-mid/mrfl.c → arch/x86/platform/intel-mid/mrfld.c

 /*
- * mrfl.c: Intel Merrifield platform specific setup code
+ * Intel Merrifield platform specific setup code
  *
  * (C) Copyright 2013 Intel Corporation
  *