recovery: Switch fuse_* to C++.

Change-Id: Id50c3e6febd0ab61f10a654b9b265cf21a2d1701
(cherry picked from commit 71dc365f25676cfb3f62dbb7163697a8c3c5243d)
diff --git a/Android.mk b/Android.mk
index cfe3030..74e7b1d 100644
--- a/Android.mk
+++ b/Android.mk
@@ -16,7 +16,7 @@
 
 include $(CLEAR_VARS)
 
-LOCAL_SRC_FILES := fuse_sideload.c
+LOCAL_SRC_FILES := fuse_sideload.cpp
 LOCAL_CLANG := true
 LOCAL_CFLAGS := -O2 -g -DADB_HOST=0 -Wall -Wno-unused-parameter
 LOCAL_CFLAGS += -D_XOPEN_SOURCE -D_GNU_SOURCE
@@ -33,7 +33,7 @@
     asn1_decoder.cpp \
     bootloader.cpp \
     device.cpp \
-    fuse_sdcard_provider.c \
+    fuse_sdcard_provider.cpp \
     install.cpp \
     recovery.cpp \
     roots.cpp \