drm/amd/display: Cleaned up headers

[why & how]
The register spec headers are duplicated in the external asic_reg path and maintaining a local copy is unnecessary.

Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Bhuvanachandra Pinninti <BhuvanaChandra.Pinninti@amd.com>
Signed-off-by: George Zhang <george.zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dce/dce_aux.c

@@ -26,6 +26,7 @@
 #include "dm_services.h"
 #include "core_types.h"
 #include "dce_aux.h"
+#include "dce/dce_11_0_d.h"
 #include "dce/dce_11_0_sh_mask.h"
 #include "dm_event_log.h"
 #include "dm_helpers.h"

drivers/gpu/drm/amd/display/dc/dce110/dce110_compressor.c

@@ -27,8 +27,6 @@
 
 #include "dce/dce_11_0_d.h"
 #include "dce/dce_11_0_sh_mask.h"
-#include "gmc/gmc_8_2_sh_mask.h"
-#include "gmc/gmc_8_2_d.h"
 
 #include "include/logger_interface.h"
 

drivers/gpu/drm/amd/display/dc/dce110/dce110_mem_input_v.c

@@ -27,8 +27,6 @@
 #include "dce/dce_11_0_d.h"
 #include "dce/dce_11_0_sh_mask.h"
 /* TODO: this needs to be looked at, used by Stella's workaround*/
-#include "gmc/gmc_8_2_d.h"
-#include "gmc/gmc_8_2_sh_mask.h"
 
 #include "include/logger_interface.h"
 #include "inc/dce_calcs.h"

drivers/gpu/drm/amd/display/dc/dce112/dce112_compressor.c

@@ -27,8 +27,12 @@
 
 #include "dce/dce_11_2_d.h"
 #include "dce/dce_11_2_sh_mask.h"
-#include "gmc/gmc_8_1_sh_mask.h"
-#include "gmc/gmc_8_1_d.h"
+
+#ifndef mmGMCON_LPT_TARGET
+#define mmGMCON_LPT_TARGET 0x0D53
+#define GMCON_LPT_TARGET__STCTRL_LPT_TARGET__SHIFT 0x00000000
+#define GMCON_LPT_TARGET__STCTRL_LPT_TARGET_MASK 0xffffffffL
+#endif
 
 #include "include/logger_interface.h"
 

drivers/gpu/drm/amd/display/dc/gpio/dce80/hw_translate_dce80.c

@@ -35,7 +35,10 @@
 
 #include "dce/dce_8_0_d.h"
 #include "dce/dce_8_0_sh_mask.h"
-#include "smu/smu_7_0_1_d.h"
+
+#ifndef mmGPIOPAD_A
+#define mmGPIOPAD_A 0x0183
+#endif
 
 /*
  * @brief