dell-smbios: rename clear_buffer() to dell_smbios_clear_buffer()

As clear_buffer() is exported from the module, it has to be renamed to
something less generic, so add a "dell_smbios_" prefix to the function
name.

Signed-off-by: Michał Kępień <kernel@kempniu.pl>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

drivers/platform/x86/dell-smbios.c

@@ -44,15 +44,15 @@ EXPORT_SYMBOL_GPL(da_tokens);
 void dell_smbios_get_buffer(void)
 {
 	mutex_lock(&buffer_mutex);
-	clear_buffer();
+	dell_smbios_clear_buffer();
 }
 EXPORT_SYMBOL_GPL(dell_smbios_get_buffer);
 
-void clear_buffer(void)
+void dell_smbios_clear_buffer(void)
 {
 	memset(buffer, 0, sizeof(struct calling_interface_buffer));
 }
-EXPORT_SYMBOL_GPL(clear_buffer);
+EXPORT_SYMBOL_GPL(dell_smbios_clear_buffer);
 
 void release_buffer(void)
 {