block: bfq: Squashed update from BFQ-v7r4 to BFQ-v7r5

Change-Id: I749ef141246db7020cec0b10d980ec854a572603
Revert "Enable setting security contexts on rootfs inodes."

This reverts commit fdbc093f6d6216fdc1313a481ccce344e5750207.
usb: gadget: mass_storage: added sysfs entry for cdrom to LUNs

This patch adds a "cdrom" sysfs entry for each mass_storage LUN, just
like "ro" sysfs entry. This allows switching between USB and CD-ROM
emulation without reinserting the module or recompiling the kernel.

Change-Id: Idf83c74815b1ad370428ab9d3e5503d5f7bcd3b6
Merge branch 'cm-11.0' of https://github.com/freexperia/android_Kernel_sony_msm8x27 into cm-11.0