EmbeddedPkg: Update code to be more C11 compliant by using __func__

__FUNCTION__ is a pre-standard extension that gcc and Visual C++ among
others support, while __func__ was standardized in C99.

Since it's more standard, replace __FUNCTION__ with __func__ throughout
EmbeddedPkg.

Signed-off-by: Rebecca Cran <rebecca@bsdio.com>
Reviewed-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Reviewed-by: Abner Chang <abner.chang@amd.com>

EmbeddedPkg/Drivers/ConsolePrefDxe/ConsolePrefDxe.c

@@ -116,7 +116,7 @@ RemoveDtStdoutPath (
     DEBUG ((
       DEBUG_INFO,
       "%a: could not retrieve DT blob - %r\n",
-      __FUNCTION__,
+      __func__,
       Status
       ));
     return;
@@ -132,7 +132,7 @@ RemoveDtStdoutPath (
     DEBUG ((
       DEBUG_INFO,
       "%a: Failed to delete 'stdout-path' property: %a\n",
-      __FUNCTION__,
+      __func__,
       fdt_strerror (Error)
       ));
   }
@@ -190,7 +190,7 @@ RemoveSpcrTable (
       DEBUG ((
         DEBUG_WARN,
         "%a: failed to uninstall SPCR table - %r\n",
-        __FUNCTION__,
+        __func__,
         Status
         ));
     }
@@ -224,7 +224,7 @@ OnReadyToBoot (
     DEBUG ((
       DEBUG_ERROR,
       "%a: variable '%s' could not be read - bailing!\n",
-      __FUNCTION__,
+      __func__,
       CONSOLE_PREF_VARIABLE_NAME
       ));
     return;
@@ -234,7 +234,7 @@ OnReadyToBoot (
     DEBUG ((
       DEBUG_INFO,
       "%a: serial console preferred - doing nothing\n",
-      __FUNCTION__
+      __func__
       ));
     return;
   }
@@ -247,7 +247,7 @@ OnReadyToBoot (
     DEBUG ((
       DEBUG_INFO,
       "%a: no GOP instances found - doing nothing (%r)\n",
-      __FUNCTION__,
+      __func__,
       Status
       ));
     return;
@@ -296,7 +296,7 @@ ConsolePrefDxeEntryPoint (
     DEBUG ((
       DEBUG_INFO,
       "%a: no console preference found, defaulting to graphical\n",
-      __FUNCTION__
+      __func__
       ));
     ConsolePref.Console = CONSOLE_PREF_GRAPHICAL;
   }
@@ -308,7 +308,7 @@ ConsolePrefDxeEntryPoint (
     DEBUG ((
       DEBUG_WARN,
       "%a: invalid value for %s, defaulting to graphical\n",
-      __FUNCTION__,
+      __func__,
       CONSOLE_PREF_VARIABLE_NAME
       ));
     ConsolePref.Console = CONSOLE_PREF_GRAPHICAL;
@@ -332,7 +332,7 @@ ConsolePrefDxeEntryPoint (
       DEBUG ((
         DEBUG_ERROR,
         "%a: gRT->SetVariable () failed - %r\n",
-        __FUNCTION__,
+        __func__,
         Status
         ));
       return Status;