conf: machine: small cleanup in phyam335x.inc
conf: machine: small cleanup in phyam335x.inc

The variable PACKAGE_INSTALL, which is defined in
poky/meta/classes/image.bbclass, already includes the variable
IMAGE_INSTALL. So it's redundant to add the package 'kernel-modules' to
both variables.

Variable BAREBOX_BOOTARGS_BASE_EXTRA was used in barebox task
do_create_config_board which was removed.

Signed-off-by: Stefan Christ <c04781dbce194802ec6a6311a1200fbcd0141e96@phytec.de>
Signed-off-by: Wadim Egorov <f42ccee66aacafbe10be12a603629f53944208c9@phytec.de>

PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec,PHYTEC-Messtechnik-GmbH/meta-phytec