staging: most: rename struct core_component

staging: most: rename struct core_component

The stuctures defined in the most.h header file will be exposed to the
kernel once the file is moved out of the staging area. That's why the name
is changed into something more descriptive.

Reported-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Christian Gromm <christian.gromm@microchip.com>
Link: https://lore.kernel.org/r/1576238662-16512-3-git-send-email-christian.gromm@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>