staging: sm750fb: Add spaces around '+'

Add spaces around '+' to correct the following checkpath.pl warnings:

WARNING: line over 80 characters
+                       write_dpPort(accel, *(unsigned int *)(pSrcbuf + (j * 4)));

WARNING: line over 80 characters
+                       memcpy(ajRemain, pSrcbuf+ul4BytesPerScan, ulBytesRemain);

Signed-off-by: Laís Pessine do Carmo <laispc19@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>