merge_config.sh: rename MAKE to RUNMAKE

The variable "MAKE" is used to store the command name that has
invoked the Makefile.  (Actually, it is already set to "make"
if you run this script from a Makefile.)

In this script, however, it is used to determine if Make should be
run or not.  It is not what we usually expect.

Change-Id: Icd554028a94ddeb8bdc85ca6bd9370672fe64eca
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Reviewed-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Git-commit: bc8f8f5fc47cd02c2c5f3580dac2fe6695af1edd
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git


Signed-off-by: Mohammed Khajapasha <mkhaja@codeaurora.org>
Signed-off-by: Prasad Sodagudi <psodagud@codeaurora.org>