Fix -Wformat errors with explicit void* -> char* cast.

hardware/qcom/sm7250/display/sde-drm/drm_plane.cpp:439:12: error: format specifies type 'char *' but the argument has type 'void *' [-Werror,-Wformat]
           blob->data, blob->length);
           ^~~~~~~~~~

hardware/qcom/sm7250/display/sde-drm/drm_connector.cpp:497:12: error: format specifies type 'char *' but the argument has type 'void *' [-Werror,-Wformat]
           blob->data, blob->length);
           ^~~~~~~~~~

hardware/qcom/sm7250/display/sde-drm/drm_connector.cpp:580:12: error: format specifies type 'char *' but the argument has type 'void *' [-Werror,-Wformat]
           blob->data, blob->length);
           ^~~~~~~~~~

hardware/qcom/sm7250/display/sde-drm/drm_crtc.cpp:308:12: error: format specifies type 'char *' but the argument has type 'void *' [-Werror,-Wformat]
           blob->data, blob->length);
           ^~~~~~~~~~

Bug: http://b/155835175
Bug: http://b/169166735
Test: m
Change-Id: I73ae1f5f4bccedd2e19f865bd1122a09de00aa76
diff --git a/sde-drm/drm_connector.cpp b/sde-drm/drm_connector.cpp
index 2f6d229..557857f 100644
--- a/sde-drm/drm_connector.cpp
+++ b/sde-drm/drm_connector.cpp
@@ -656,7 +656,7 @@
   fmt_str[blob->length] = '\0';
   stringstream stream(fmt_str);
   DRM_LOGI("stream str %s len %zu blob str %s len %d", stream.str().c_str(), stream.str().length(),
-           blob->data, blob->length);
+           static_cast<const char *>(blob->data), blob->length);
   string line = {};
   const string display_type = "display type=";
   const string panel_name = "panel name=";
@@ -764,7 +764,7 @@
   fmt_str[blob->length] = '\0';
   stringstream stream(fmt_str);
   DRM_LOGI("stream str %s len %zu blob str %s len %d", stream.str().c_str(), stream.str().length(),
-           blob->data, blob->length);
+           static_cast<const char *>(blob->data), blob->length);
 
   string line = {};
   const string mode_name = "mode_name=";
diff --git a/sde-drm/drm_crtc.cpp b/sde-drm/drm_crtc.cpp
index 57eeeb9..f6a0341 100755
--- a/sde-drm/drm_crtc.cpp
+++ b/sde-drm/drm_crtc.cpp
@@ -403,7 +403,7 @@
   fmt_str[blob->length] = '\0';
   stringstream stream(fmt_str);
   DRM_LOGI("stream str %s len %zu blob str %s len %d", stream.str().c_str(), stream.str().length(),
-           blob->data, blob->length);
+           static_cast<const char *>(blob->data), blob->length);
   string line = {};
   string max_blendstages = "max_blendstages=";
   string qseed_type = "qseed_type=";
diff --git a/sde-drm/drm_plane.cpp b/sde-drm/drm_plane.cpp
index a41f096..aa015ac 100644
--- a/sde-drm/drm_plane.cpp
+++ b/sde-drm/drm_plane.cpp
@@ -655,7 +655,7 @@
   // like formats etc
   stringstream stream(fmt_str);
   DRM_LOGI("stream str %s len %zu blob str %s len %d", stream.str().c_str(), stream.str().length(),
-           blob->data, blob->length);
+           static_cast<const char *>(blob->data), blob->length);
 
   string line = {};
   string pixel_formats = "pixel_formats=";