staging: sm750fb: rename `hw_sm750le_setBLANK`

Rename `hw_sm750le_setBLANK` to `hw_sm750le_set_blank` to conform with
kernel style guidelines as reported by checkpatch.pl

CHECK: Avoid CamelCase: <hw_sm750le_setBLANK>

Signed-off-by: Eric Florin <[e-mail]>
Link: https://lore.kernel.org/r/b4[e-mail]
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/sm750fb/sm750.c

···
 	crtc->ywrapstep = 0;
 
 	output->proc_setBLANK = (sm750_dev->revid == SM750LE_REVISION_ID) ?
-				 hw_sm750le_setBLANK : hw_sm750_set_blank;
+				 hw_sm750le_set_blank : hw_sm750_set_blank;
 	/* chip specific phase */
 	sm750_dev->accel.de_wait = (sm750_dev->revid == SM750LE_REVISION_ID) ?
 				    hw_sm750le_de_wait : hw_sm750_de_wait;

drivers/staging/sm750fb/sm750.h

···
 			 ushort red, ushort green, ushort blue);
 
 int hw_sm750_set_blank(struct lynxfb_output *output, int blank);
-int hw_sm750le_setBLANK(struct lynxfb_output *output, int blank);
+int hw_sm750le_set_blank(struct lynxfb_output *output, int blank);
 int hw_sm750_pan_display(struct lynxfb_crtc *crtc,
 			 const struct fb_var_screeninfo *var,
 			 const struct fb_info *info);

drivers/staging/sm750fb/sm750_hw.c

···
 	return 0;
 }
 
-int hw_sm750le_setBLANK(struct lynxfb_output *output, int blank)
+int hw_sm750le_set_blank(struct lynxfb_output *output, int blank)
 {
 	int dpms, crtdb;