Move x86 emulators to v4.1 kernel

With goldfish support backported into the v4.1 tree, we can move the
x86 emulators forward.

Change-Id: Ifb851a6f15e2aa79bcb9817bcea949244c207bf3
Signed-off-by: Kees Cook <keescook@google.com>
diff --git a/brilloemulator_x86/bsp/qemu_x86.mk b/brilloemulator_x86/bsp/qemu_x86.mk
index def4c01..67ad86e 100644
--- a/brilloemulator_x86/bsp/qemu_x86.mk
+++ b/brilloemulator_x86/bsp/qemu_x86.mk
@@ -35,7 +35,7 @@
   system/core/rootdir/ueventd.rc:root/ueventd.rc \
 
 # Set up the local kernel.
-TARGET_KERNEL_SRC := hardware/bsp/kernel/common/android-3.18
+TARGET_KERNEL_SRC := hardware/bsp/kernel/common/v4.1
 TARGET_KERNEL_DEFCONFIG := i386_defconfig
 TARGET_KERNEL_CONFIGS := $(realpath $(LOCAL_PATH)/brillo.kconf)
 
diff --git a/brilloemulator_x86_64/bsp/qemu_x86_64.mk b/brilloemulator_x86_64/bsp/qemu_x86_64.mk
index b3bfd9c..bc0d25b 100644
--- a/brilloemulator_x86_64/bsp/qemu_x86_64.mk
+++ b/brilloemulator_x86_64/bsp/qemu_x86_64.mk
@@ -44,7 +44,7 @@
   system/core/rootdir/ueventd.rc:root/ueventd.rc \
 
 # Set up the local kernel.
-TARGET_KERNEL_SRC := hardware/bsp/kernel/common/android-3.18
+TARGET_KERNEL_SRC := hardware/bsp/kernel/common/v4.1
 TARGET_KERNEL_DEFCONFIG := x86_64_defconfig
 TARGET_KERNEL_CONFIGS := $(realpath $(LOCAL_PATH)/brillo.kconf)