uinput: fix uinput compile failed, if no define CONFIG_UINPUT_TOUCH

[GUIDINGLI]

Summary

uinput: fix uinput compile failed, if no define CONFIG_UINPUT_TOUCH

input/uinput.c:81:28: error: field 'lower' has incomplete type
81 | struct touch_lowerhalf_s lower;
| ^~~~~

Impact

uinput

Testing

VELA

[acassis]

@GUIDINGLI seems like it is failing because some issues on someone else included code:

In file included from chip/sam_clockconfig.c:34:
chip/sam_clockconfig.c: In function 'sam_usbclockconfig':
Error: /github/workspace/sources/nuttx/arch/arm/src/common/arm_internal.h:135:51: error: 'regval' is used uninitialized [-Werror=uninitialized]
  135 | #define putreg32(v,a)  (*(volatile uint32_t *)(a) = (v))
      |                                                   ^
chip/sam_clockconfig.c:422:12: note: 'regval' was declared here
  422 |   uint32_t regval;
      |            ^~~~~~
cc1: all warnings being treated as errors
make[1]: *** [Makefile:144: sam_clockconfig.o] Error 1
make[1]: Target 'libarch.a' not remade because of errors.
make: *** [tools/LibTargets.mk:158: arch/arm/src/libarch.a] Error 2
make: Target 'all' not remade because of errors.

[xiaoxiang781216]

Let's ignore the unrelated ci broken which is fixed by #8155.