plugins/micron: Fix micron-nvme.c linux kernel check patch errors and warnings

plugins/micron: Fix micron-nvme.c linux kernel check patch errors and warnings

Note: Still the remaining warning messages are not fixed as same with nvme.c.

WARNING: quoted string split across lines
+               "This performs a selective firmware download, which allows the user to "
+               "select which firmware binary to update for 9200 devices. This requires "

WARNING: quoted string split across lines
+               "select which firmware binary to update for 9200 devices. This requires "
+               "a power cycle once the update completes. The options available are:\n\n"

Signed-off-by: Tokunori Ikegami <ikegami.t@gmail.com>