MAINLINE samsung: misc: add gpt restore option to lcd menu

MAINLINE samsung: misc: add gpt restore option to lcd menu

Function cmd_process() runs commands with directly given list
of arguments but it doesn't expand given macros. Command gpt
expects expanded macro e.g. $partitions as an argument so it
needs to be called with function run_command().

Changes:
- extend array mode_name by lower case commands names - used by find_cmd()
- put each command arguments into one string - used by run_command()
- use run_command() instead of cmd_process()

Change-Id: I2749d0b3661e2430bedd215d4024f5ae68f358db
Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>