Convert CONFIG_TRACE to Kconfig

This converts the following to Kconfig:
   CONFIG_TRACE

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/Kconfig b/cmd/Kconfig
index f6e7cd4..8744cec 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1905,7 +1905,7 @@
 	  Enables a command to control using of function tracing within
 	  U-Boot. This allows recording of call traces including timing
 	  information. The command can write data to memory for exporting
-	  for analsys (e.g. using bootchart). See doc/README.trace for full
+	  for analysis (e.g. using bootchart). See doc/README.trace for full
 	  details.
 
 config CMD_AVB
diff --git a/lib/Kconfig b/lib/Kconfig
index 2120216..a3352a4 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -165,6 +165,15 @@
 config BITREVERSE
 	bool "Bit reverse library from Linux"
 
+config TRACE
+	bool "Support for tracing of function calls and timing"
+	imply CMD_TRACE
+	help
+	  Enables function tracing within U-Boot. This allows recording of call
+	  traces including timing information. The command can write data to
+	  memory for exporting for analysis (e.g. using bootchart).
+	  See doc/README.trace for full details.
+
 source lib/dhry/Kconfig
 
 menu "Security support"
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index 421362d..2942c69 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -4401,7 +4401,6 @@
 CONFIG_TPL_PAD_TO
 CONFIG_TPM_TIS_BASE_ADDRESS
 CONFIG_TPS6586X_POWER
-CONFIG_TRACE
 CONFIG_TRACE_BUFFER_SIZE
 CONFIG_TRACE_EARLY
 CONFIG_TRACE_EARLY_ADDR