alarm/firmware-brcm43xx: Search harder for chip version

* Fixes finding chip on wandboard (mmc1) and possibly other devices
* Gracefully fail if a chip is not found.

alarm/firmware-brcm43xx/PKGBUILD

@@ -26,7 +26,7 @@ md5sums=('bf01292eec17815baa68a83d3d7722ad'
          'ff27325602dc223203adfdd23a89844b'
          '8e32f9168aaa540467589c153129c57a'
          '627e9612337e5ef6027a87a79c491446'
-         '33ec0f0cfbbdd42b933d0a2ad93f7181'
+         'a7f6e574bc1097f0dd7e2e14ab7c95cf'
          'f2eefa2042130e559b2d664a3fcc7b50')
 
 build() {

alarm/firmware-brcm43xx/start-brcm-patchram-plus

@@ -13,7 +13,17 @@ else
 fi
 MAC_OPTIONS="--bd_addr $MAC_ADDR"
 
-a=`cat /sys/class/mmc_host/mmc0/mmc0\:0001/mmc0\:0001\:1/device`
+# Find chip version
+DEVS=($( cat /sys/class/mmc_host/mmc?/mmc?\:0001/mmc?\:0001:?/device ))
+for DEV in "${DEVS[@]}"; do
+	if [ "${DEV:0:4}" = "0x43" ]; then
+		a="$DEV"
+	fi
+done
+if [ -z "$a" ]; then
+	echo "Failed: Unable to locate bluetooth device"
+	exit 1
+fi
 
 HCD=""
 EXTRA=""