drm/amd/powerplay: split out those internal used swSMU APIs V2

Those swSMU APIs used internally are moved to smu_internal.h while
others are kept in amdgpu_smu.h.

V2: give a better name smu_internal.h for the place to hold
    those internal APIs
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/amdgpu_smu.c

@@ -25,6 +25,7 @@
 #include "pp_debug.h"
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "soc15_common.h"
 #include "smu_v11_0.h"
 #include "smu_v12_0.h"

drivers/gpu/drm/amd/powerplay/arcturus_ppt.c

@@ -25,6 +25,7 @@
 #include <linux/firmware.h>
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "smu_v11_0.h"

drivers/gpu/drm/amd/powerplay/navi10_ppt.c

@@ -26,6 +26,7 @@
 #include <linux/pci.h>
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "smu_v11_0.h"

drivers/gpu/drm/amd/powerplay/renoir_ppt.c

@@ -23,6 +23,7 @@
 
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "soc15_common.h"
 #include "smu_v12_0_ppsmc.h"
 #include "smu12_driver_if.h"

drivers/gpu/drm/amd/powerplay/smu_v11_0.c

@@ -27,6 +27,7 @@
 #include "pp_debug.h"
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "smu_v11_0.h"

drivers/gpu/drm/amd/powerplay/smu_v12_0.c

@@ -24,6 +24,7 @@
 #include <linux/firmware.h>
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "smu_v12_0.h"

drivers/gpu/drm/amd/powerplay/vega20_ppt.c

@@ -25,6 +25,7 @@
 #include <linux/firmware.h>
 #include "amdgpu.h"
 #include "amdgpu_smu.h"
+#include "smu_internal.h"
 #include "atomfirmware.h"
 #include "amdgpu_atomfirmware.h"
 #include "smu_v11_0.h"