drivers/staging/omapdrm/omap_fbdev.c: move free after uses

Move the free after the final uses.

The semantic patch that makes this report is available
in scripts/coccinelle/free/kfree.cocci.

More information about semantic patching is available at
http://coccinelle.lip6.fr/



Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>