build: Check for linux/uinput.h and linux/uhid.h

build: Check for linux/uinput.h and linux/uhid.h

This makes configure to check the presence of linux/uinput.h and
linux/uhid.h kernel uapi headers since the code no longer contain copies
of them and otherwise the code cannot be build without them:

checking linux/uinput.h usability... yes
checking linux/uinput.h presence... yes
checking for linux/uinput.h... yes
checking linux/uhid.h usability... yes
checking linux/uhid.h presence... yes
checking for linux/uhid.h... yes

Signed-off-by: Anuj Jain <anuj01.jain@samsung.com>
Signed-off-by: Ayush Garg <ayush.garg@samsung.com>