bootloader: nakasi: subject bootloader version to 3.41. DO NOT MERGE

What's new in this release?
    1. add new hw version, ER4, ER5 for TI PMIC sku
    2. fix TI PMIC power off fail in BL stage
    3. set eMMC Vcore to 3.0V in BL stage
    4. shutdown the device immediately when remove usb cable
       in off mode charging

Change-Id: I3dfc58c9ab358450db17e7de14b87f84866823c9
diff --git a/board-info.txt b/board-info.txt
index 0f19e55..d278390 100644
--- a/board-info.txt
+++ b/board-info.txt
@@ -1,2 +1,2 @@
 require board=grouper
-require version-bootloader=3.39
+require version-bootloader=3.41