initscripts: Improve parsing of mount parameters in order to fix remounting of rw jffs2.
initscripts: Improve parsing of mount parameters in order to fix remounting of rw jffs2.

This change filters additional mount parameters which can cause jffs2 filesystems to
get remounted even if mounted rw already.

Signed-off-by: Florian Boor <039f13934429c3e687fd452ce64217cbd7f1565d@kernelconcepts.de>

giobauermeister/openembedded,dellysunnymtech/sakoman-oe,dellysunnymtech/sakoman-oe,xifengchuo/openembedded,hulifox008/openembedded,openembedded/openembedded,JamesAng/oe,giobauermeister/openembedded,JamesAng/goe,JamesAng/oe,dellysunnymtech/sakoman-oe,giobauermeister/openembedded,openembedded/openembedded,openembedded/openembedded,JamesAng/oe,xifengchuo/openembedded,hulifox008/openembedded,sentient-energy/emsw-oe-mirror,giobauermeister/openembedded,sentient-energy/emsw-oe-mirror,dellysunnymtech/sakoman-oe,dellysunnymtech/sakoman-oe,openembedded/openembedded,JamesAng/oe,openembedded/openembedded,giobauermeister/openembedded,sentient-energy/emsw-oe-mirror,giobauermeister/openembedded,openembedded/openembedded,dellysunnymtech/sakoman-oe,hulifox008/openembedded,xifengchuo/openembedded,hulifox008/openembedded,giobauermeister/openembedded,xifengchuo/openembedded,openembedded/openembedded,giobauermeister/openembedded,openembedded/openembedded,JamesAng/oe,JamesAng/goe,JamesAng/goe,sentient-energy/emsw-oe-mirror,JamesAng/goe,xifengchuo/openembedded,dellysunnymtech/sakoman-oe,JamesAng/goe,dellysunnymtech/sakoman-oe,dellysunnymtech/sakoman-oe,hulifox008/openembedded,JamesAng/goe,openembedded/openembedded,hulifox008/openembedded,openembedded/openembedded,JamesAng/oe,xifengchuo/openembedded,sentient-energy/emsw-oe-mirror,hulifox008/openembedded,sentient-energy/emsw-oe-mirror,JamesAng/goe,sentient-energy/emsw-oe-mirror,giobauermeister/openembedded,JamesAng/oe,xifengchuo/openembedded,xifengchuo/openembedded,xifengchuo/openembedded,openembedded/openembedded