kernel: ltq-vmmc: fix compilation warning/error

kernel: ltq-vmmc: fix compilation warning/error

Fix compilation warning enum-int-mismatch which results in failure to
build kmod-ltq-vmmc in case CONFIG_KERNEL_WERROR is set.
.../build_dir/target-mips_24kc_musl/linux-lantiq_xrx200/drv_vmmc-1.9.0/src/mps/drv_mps_vmmc_common.c:392:14: error: conflicting types for 'ifx_mps_fastbuf_init' due to enum/integer mismatch; have 'IFX_return_t(void)' [-Werror=enum-int-mismatch]
  392 | IFX_return_t ifx_mps_fastbuf_init (IFX_void_t)
      |              ^~~~~~~~~~~~~~~~~~~~
.../build_dir/target-mips_24kc_musl/linux-lantiq_xrx200/drv_vmmc-1.9.0/src/mps/drv_mps_vmmc_common.c:120:13: note: previous declaration of 'ifx_mps_fastbuf_init' with type 'IFX_int32_t(void)' {aka 'int(void)'}
  120 | IFX_int32_t ifx_mps_fastbuf_init (IFX_void_t);
      |             ^~~~~~~~~~~~~~~~~~~~
.../build_dir/target-mips_24kc_musl/linux-lantiq_xrx200/drv_vmmc-1.9.0/src/mps/drv_mps_vmmc_common.c:420:14: error: conflicting types for 'ifx_mps_fastbuf_close' due to enum/integer mismatch; have 'IFX_return_t(void)' [-Werror=enum-int-mismatch]
  420 | IFX_return_t ifx_mps_fastbuf_close (IFX_void_t)
      |              ^~~~~~~~~~~~~~~~~~~~~
.../build_dir/target-mips_24kc_musl/linux-lantiq_xrx200/drv_vmmc-1.9.0/src/mps/drv_mps_vmmc_common.c:121:13: note: previous declaration of 'ifx_mps_fastbuf_close' with type 'IFX_int32_t(void)' {aka 'int(void)'}
  121 | IFX_int32_t ifx_mps_fastbuf_close (IFX_void_t);
      |             ^~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Refresh patches and bump PKG_RELEASE while at it.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>