Set $(PERL) variable in AndroidKernel.mk

Change-Id: Ied321716cfd60460b3bbc849cdbd1cf1dbaf52f4
Signed-off-by: Neeti Desai <neetid@codeaurora.org>
diff --git a/AndroidKernel.mk b/AndroidKernel.mk
index 97aa85d..50db52c 100644
--- a/AndroidKernel.mk
+++ b/AndroidKernel.mk
@@ -1,4 +1,5 @@
 #Android makefile to build kernel as a part of Android Build
+PERL		= perl
 
 ifeq ($(TARGET_PREBUILT_KERNEL),)