staging: sm750fb: replace custom MB(x) macro with appropriate SZ_xM

Use SZ_xM defined in linux/sizes.h instead of custom MB(x) macro

Signed-off-by: Mike Rapoport <mike.rapoport@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 files changed