drm/i915/skl: DMC firmware for skylake v1.27

There is a new version of dmc available for skylake.
Following additions from ver1.27

1. Fix for the issue where DC_STATE was getting enabled even when
disabled by driver causing data corruption.

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1510276712-29590-2-git-send-email-anusha.srivatsa@intel.com

drivers/gpu/drm/i915/intel_csr.c

@@ -44,9 +44,9 @@
 MODULE_FIRMWARE(I915_CSR_KBL);
 #define KBL_CSR_VERSION_REQUIRED	CSR_VERSION(1, 4)
 
-#define I915_CSR_SKL "i915/skl_dmc_ver1_26.bin"
+#define I915_CSR_SKL "i915/skl_dmc_ver1_27.bin"
 MODULE_FIRMWARE(I915_CSR_SKL);
-#define SKL_CSR_VERSION_REQUIRED	CSR_VERSION(1, 26)
+#define SKL_CSR_VERSION_REQUIRED	CSR_VERSION(1, 27)
 
 #define I915_CSR_BXT "i915/bxt_dmc_ver1_07.bin"
 MODULE_FIRMWARE(I915_CSR_BXT);