fix: a38x: add mtdparts_lgcy default env. variable for LSP 3.4 and 2.6

	LSP 3.4 & 2.6 identifies SPI flash as "spi_flash" and not
	"spix.y" as in 3.10 and above.
	- add mtdparts_lgcy env variable for having "spi_flash"
	  as spi flash identifier.
	- change every command that boots the old kernel (uImage)
	  to use mtdparts_lgcy instead of mtdparts env variable.
	- fixed JIRA:SYSTEMSW-1029

Change-Id: I8af429c5f6e11e0983b934770bf71313feda2fa8
Signed-off-by: Bassel Saba <basselsa@marvell.com>
Reviewed-on: http://vgitil04.il.marvell.com:8080/18601
Reviewed-by: Omri Itach <omrii@marvell.com>
Tested-by: Omri Itach <omrii@marvell.com>
1 file changed