drm/i915: add some more "i" in platform names for consistency

Consistency FTW.

Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/9ab811dc06570bd3fc05a917ade1bdc9bb805a75.1480520526.git.jani.nikula@intel.com
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 00a36bf..a746130 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2955,7 +2955,7 @@ static bool cursor_active(struct drm_i915_private *dev_priv, int pipe)
 {
 	u32 state;
 
-	if (IS_845G(dev_priv) || IS_I865G(dev_priv))
+	if (IS_I845G(dev_priv) || IS_I865G(dev_priv))
 		state = I915_READ(CURCNTR(PIPE_A)) & CURSOR_ENABLE;
 	else
 		state = I915_READ(CURCNTR(pipe)) & CURSOR_MODE;