clk: samsung: trivial: Correct typo in author's name

This patch corrects mistyped author's name in four header files. While
at it, a copy/paste error in author's e-mail in one of the headers is
also fixed.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>

diff --cc include/dt-bindings/clock/exynos4.h
Simple merge

diff --cc include/dt-bindings/clock/exynos5250.h
Simple merge

diff --cc include/dt-bindings/clock/exynos5420.h
Simple merge

diff --cc include/dt-bindings/clock/exynos5440.h
Simple merge