travis: add iasl to apt-get

Signed-off-by: Joakim Bech <joakim.bech@linaro.org>
Reviewed-by: Jens Wiklander <jens.wiklander@linaro.org>

.travis.yml

@@ -30,7 +30,7 @@ before_install:
   - sudo dpkg --add-architecture i386
   - sudo apt-get update -qq
   # Taken from README.md + device-tree-compiler
-  - sudo apt-get install -qq -y android-tools-adb android-tools-fastboot autoconf automake bc bison build-essential cscope curl device-tree-compiler flex ftp-upload gdisk libattr1-dev libc6:i386 libcap-dev libfdt-dev libftdi-dev libglib2.0-dev libhidapi-dev libncurses5-dev libpixman-1-dev libssl-dev libstdc++6:i386 libtool libz1:i386 make mtools netcat python-crypto python-serial python-wand unzip uuid-dev xdg-utils xterm xz-utils zlib1g-dev
+  - sudo apt-get install -qq -y android-tools-adb android-tools-fastboot autoconf automake bc bison build-essential cscope curl device-tree-compiler flex ftp-upload gdisk iasl libattr1-dev libc6:i386 libcap-dev libfdt-dev libftdi-dev libglib2.0-dev libhidapi-dev libncurses5-dev libpixman-1-dev libssl-dev libstdc++6:i386 libtool libz1:i386 make mtools netcat python-crypto python-serial python-wand unzip uuid-dev xdg-utils xterm xz-utils zlib1g-dev
 
 install: true