This is an adoption of the linux kernel commit

| commit adcc3f7
| Author: Jonathan Liu <net147@gmail.com>
| Date:   Mon Jun 12 18:23:17 2017 +1000
|
|    scripts/mkcompile_h: Remove trailing spaces from compiler version
|
|    Improves the output of "cat /proc/version" by getting rid of the
|    trailing space at the end of the compiler version when the kernel
|    is compiled using GCC.
|
|    Signed-off-by: Jonathan Liu <net147@gmail.com>
|    Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>

Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>