broadcom-bt-firmware: upgrade 12.0.1.1105_p2 -> 12.0.1.1105_p3

Changelog:
==========
Fixed openembedded#26 (unable to install RPM pacakge), updated documentation.

Signed-off-by: Wang Mingyu <[email protected]>
Signed-off-by: Khem Raj <[email protected]>

Author: wangmingyu84

meta-oe/recipes-kernel/broadcom-bt-firmware/broadcom-bt-firmware_12.0.1.1105_p2.bb renamed to meta-oe/recipes-kernel/broadcom-bt-firmware/broadcom-bt-firmware_12.0.1.1105_p3.bb

@@ -10,7 +10,7 @@ NO_GENERIC_LICENSE[Firmware-Broadcom-WIDCOMM] = "LICENSE.broadcom_bcm20702"
 
 LIC_FILES_CHKSUM = "file://LICENSE.broadcom_bcm20702;md5=c0d5ea0502b00df74173d0f8a48b619d"
 SRC_URI = "git://github.com/winterheart/broadcom-bt-firmware.git;branch=master;protocol=https"
-SRCREV = "1af1116f73782951bd7bbe2139928e497c3a634b"
+SRCREV = "68a7a8a4f2c4bdd3425c23653a3b9b6609e41d0b"
 
 PE = "1"