Update XTLDR configuration file

bootdata/xtldr/xtldr.ini

@@ -6,6 +6,8 @@
 # Debug        - enables the debugging port and consists of two comma-separated parameters: com port and baud rate;
 #                it is also possible to specify custom port address with: COM0:[address],[baud_rate]
 # Default      - specifies which operating system listen in config file will be started if no choice is made
+# KeepLastBoot - specifies whether last booted OS should be stored in NVRAM and booted automatically next time, or not;
+#                this parameter takes 'true' or 'false' value
 # Modules      - supplies a list of modules that will be loaded in orded to extend XTLDR functionality
 # Timeout      - sets the countdown timer (in seconds) before the default OS get started automatically
 # Tune         - plays a tune on the pcspeaker right before the XTLDR boot menu shows up
@@ -25,6 +27,7 @@
 [XTLDR]
 Debug=COM1,115200
 Default=ExectOS
+KeepLastBoot=TRUE
 Modules=beep
 Timeout=10
 Tune=400 880 2 988 2 783 2 392 2 587 3