staging: sm750fb: rename 'hwCursor'

Rename 'hwCursor' to 'hw_cursor' to
conform with kernel style guidelines as reported by checkpatch.pl

CHECK: Avoid CamelCase: <hwCursor>

Signed-off-by: Kisub Choe <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/sm750fb/sm750.c

···
 		crtc->vidmem_size >>= 1;
 
 	/* setup crtc and output member */
-	sm750_dev->hwCursor = g_hwcursor;
+	sm750_dev->hw_cursor = g_hwcursor;
 
 	crtc->line_pad = 16;
 	crtc->xpanstep = 8;

drivers/staging/sm750fb/sm750.h

···
 	 * 2: secondary crtc hw cursor enabled
 	 * 3: both ctrc hw cursor enabled
 	 */
-	int hwCursor;
+	int hw_cursor;
 };
 
 struct lynx_cursor {