drm/i915: make PCH_GMBUS* definitions private to gvt

This is the only place that they are being used - the others use the
GMBUS* macros that rely on dev_priv being already properly initialized.

Cc: intel-gvt-dev@lists.freedesktop.org
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180727193647.8639-1-lucas.demarchi@intel.com

drivers/gpu/drm/i915/gvt/reg.h

@@ -77,4 +77,11 @@
 #define _RING_CTL_BUF_SIZE(ctl) (((ctl) & RB_TAIL_SIZE_MASK) + \
 		I915_GTT_PAGE_SIZE)
 
+#define PCH_GMBUS0	_MMIO(0xc5100)
+#define PCH_GMBUS1	_MMIO(0xc5104)
+#define PCH_GMBUS2	_MMIO(0xc5108)
+#define PCH_GMBUS3	_MMIO(0xc510c)
+#define PCH_GMBUS4	_MMIO(0xc5110)
+#define PCH_GMBUS5	_MMIO(0xc5120)
+
 #endif

drivers/gpu/drm/i915/i915_reg.h

@@ -7790,13 +7790,6 @@ enum {
 #define PCH_GPIOE               _MMIO(0xc5020)
 #define PCH_GPIOF               _MMIO(0xc5024)
 
-#define PCH_GMBUS0		_MMIO(0xc5100)
-#define PCH_GMBUS1		_MMIO(0xc5104)
-#define PCH_GMBUS2		_MMIO(0xc5108)
-#define PCH_GMBUS3		_MMIO(0xc510c)
-#define PCH_GMBUS4		_MMIO(0xc5110)
-#define PCH_GMBUS5		_MMIO(0xc5120)
-
 #define _PCH_DPLL_A              0xc6014
 #define _PCH_DPLL_B              0xc6018
 #define PCH_DPLL(pll) _MMIO((pll) == 0 ? _PCH_DPLL_A : _PCH_DPLL_B)