staging: fbtft: Reformat line over 80 characters

A long variable name beyond 80 characters extends  into the next
line. Reformatting the line makes it more readable. Also adding an extra
line for the next instruction following current if block helps
understand it better.

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
Link: https://lore.kernel.org/r/027ccfa893feafc25da273b4b4de444d7a466cfd.1584314603.git.mh12gx2825@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>