Fix mount mistake of .sysconfig on userdata

- This fixs commit 04762829302bf914c7abb84637f4f97af211e6b0
XBMC: Fix S95xbmc
M1_M3/M6_MX: Cleanup init.d scripts

 - S49persona is unneeded and removed by this commit
 - Dropbear has bin removed from S10setup, it's called later by S50dropbear
RECOVERY_AML: Add e2fsck to ext4 mount commands
JYNXM6/G02REF: Move to ext4 filesystem and add g02ref resources
G18/MX2: Update pre-built kernels
XBMC: Bump to HEAD
M6_MX: Add modified S95xbmc to overlay
CONFIGS/XBMC: Allow M6 devices to preform proper shutdowns
G02REF/README: Disable broadcom package untill ready / Update README.md
CONFIGS: Align M6 configs
M6_MX: Audio HW does not stall with freq's lower then 600Mhz
STVMX/JYNXM6: Bump bootloader
JYNXM6: Fix pre-built kernel
RECOVERY_AML: Add new JynxBox logos
Revert wifi back to WEXT as default, from https://github.com/J1nx-Hackable-Gadgets/buildroot-M3-MX/commit/0886d81159bcf08392e536801f7bc806f79eadb4
STVM3/JYNXM1: Add pre-built kernels
G18/MX2: Use imgpack-1225 on NEWMTD
M1_M3/M6_MX: Wait for net devices to come up

Based on https://github.com/Pivosgroup/buildroot-linux commits 77bc498c48d83e9c6094b769fc0ea6b9d41f2a6a & a083da1c0a7bf153e8e43bf38f2a41efdafb5f63
Add OpenGL API 19 from published Amlogic buildroot