axolotl: retrofit virtual A/B support

This bumps boot control HAL to 1.1, as it is a requirement[1]
for virtual A/B.

Note: This also requires a current bootloader (3.5 and above).

[1] - https://source.android.com/devices/tech/ota/virtual_ab/implement#boot-control-hal

Change-Id: I223428192d0abd6482c4574ced10d111fbabe38d
Signed-off-by: Alexander Martinz <amartinz@shiftphones.com>
diff --git a/Android.bp b/Android.bp
index 4f0e69e..e44db93 100644
--- a/Android.bp
+++ b/Android.bp
@@ -6,7 +6,7 @@
 //
 
 soong_namespace {
-    imports: ["hardware/qcom/bootctrl"],
+    imports: ["hardware/qcom-caf/bootctrl"],
 }
 
 prebuilt_hidl_interfaces {