drm/i915/vga: rename intel_vga_msr_write() to intel_vga_reset_io_mem()

Rename the function per Ville's suggestion. No functional changes.

Cc: Ville Syrjälä <[e-mail]>
Suggested-by: Ville Syrjälä <[e-mail]>
Reviewed-by: Ville Syrjälä <[e-mail]>
Signed-off-by: Jani Nikula <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/i915/display/intel_display_power.c

···
 				       u8 irq_pipe_mask, bool has_vga)
 {
 	if (has_vga)
-		intel_vga_msr_write(dev_priv);
+		intel_vga_reset_io_mem(dev_priv);
 
 	if (irq_pipe_mask)
 		gen8_irq_power_well_post_enable(dev_priv, irq_pipe_mask);

drivers/gpu/drm/i915/display/intel_vga.c

···
 	intel_display_power_put(i915, POWER_DOMAIN_VGA, wakeref);
 }
 
-void intel_vga_msr_write(struct drm_i915_private *i915)
+void intel_vga_reset_io_mem(struct drm_i915_private *i915)
 {
 	struct pci_dev *pdev = i915->drm.pdev;
 

drivers/gpu/drm/i915/display/intel_vga.h

···
 
 struct drm_i915_private;
 
-void intel_vga_msr_write(struct drm_i915_private *i915);
+void intel_vga_reset_io_mem(struct drm_i915_private *i915);
 void intel_vga_disable(struct drm_i915_private *i915);
 void intel_vga_redisable(struct drm_i915_private *i915);
 void intel_vga_redisable_power_on(struct drm_i915_private *i915);